Photographing lens assembly, image capturing unit and electronic device

ABSTRACT

A photographing lens assembly includes seven lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The second lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex shape in an off-axis region thereof.

RELATED APPLICATIONS

This application is a continuation patent application of U.S.application Ser. No. 17/580,512, filed on Jan. 20, 2022, which is acontinuation patent application of U.S. application Ser. No. 16/848,669,filed on Apr. 14, 2020, which is a continuation patent application ofU.S. application Ser. No. 16/434,023, filed on Jun. 6, 2019, which is acontinuation patent application of U.S. application Ser. No. 15/782,614,filed on Oct. 12, 2017, which claims priority to Taiwan Application106120258, filed Jun. 16, 2017, which is incorporated by referenceherein in its entirety.

BACKGROUND Technical Field

The present disclosure relates to a photographing lens assembly, animage capturing unit and an electronic device, more particularly to aphotographing lens assembly and an image capturing unit applicable to anelectronic device.

Description of Related Art

In recent years, with the popularity of electronic devices having camerafunctionalities, the demand of miniaturized optical systems has beenincreasing. As the advanced semiconductor manufacturing technologieshave reduced the pixel size of sensors, and compact optical systems havegradually evolved toward the field of higher megapixels, there is anincreasing demand for compact optical systems featuring better imagequality.

In order to provide better user experience, the electronic deviceequipped with one or more optical systems has become a mainstream in themarket. For various applications, the optical systems are developed withvarious optical characteristics for achieving higher specifications, andhave been widely applied to different kinds of smart electronic devices,such as multiple camera devices, wearable devices, digital cameras,vehicle devices, image recognition systems, entertainment devices, sportdevices and intelligent home assistance systems, for variousrequirements.

In a conventional optical system featuring wide view angle and largeaperture, a high image quality is generated by arranging the shape ofeach lens element and selecting the material of each lens element, whilesuch lens configuration is unfavorable for the reduction in the size ofoptical system, the prevention of lens molding problems, the increase inlens assembling yield rate and the reduction of sensitivity.Accordingly, the conventional optical system is already unable to meetthe requirements of large aperture, sufficient field of view,compactness and high image quality for current technology trends.

SUMMARY

According to one aspect of the present disclosure, a photographing lensassembly includes seven lens elements. The seven lens elements are, inorder from an object side to an image side, a first lens element, asecond lens element, a third lens element, a fourth lens element, afifth lens element, a sixth lens element and a seventh lens element. Thesecond lens element has positive refractive power. The seventh lenselement has an image-side surface being concave in a paraxial regionthereof, and the image-side surface of the seventh lens element has atleast one convex shape in an off-axis region thereof. When a focallength of the photographing lens assembly is f, a curvature radius of anobject-side surface of the second lens element is R3, a curvature radiusof an image-side surface of the second lens element is R4, a curvatureradius of an object-side surface of the sixth lens element is R11, acurvature radius of an image-side surface of the sixth lens element isR12, an axial distance between an object-side surface of the first lenselement and an image surface is TL, and an entrance pupil diameter ofthe photographing lens assembly is EPD, the following conditions aresatisfied:

|f/R11|+|f/R12|<0.95;

(R3+R4)/(R3−R4)<1.80; and

TL/EPD<2.80.

According to another aspect of the present disclosure, an imagecapturing unit includes the aforementioned photographing lens assemblyand an image sensor, wherein the image sensor is disposed on the imagesurface of the photographing lens assembly.

According to still another aspect of the present disclosure, anelectronic device includes the aforementioned image capturing unit.

According to yet still another aspect of the present disclosure, aphotographing lens assembly includes seven lens elements. The seven lenselements are, in order from an object side to an image side, a firstlens element, a second lens element, a third lens element, a fourth lenselement, a fifth lens element, a sixth lens element and a seventh lenselement. The second lens element has positive refractive power. Theseventh lens element has an object-side surface being convex in aparaxial region thereof and an image-side surface being concave in aparaxial region thereof. The image-side surface of the seventh lenselement has at least one convex shape in an off-axis region thereof.When a focal length of the photographing lens assembly is f, a focallength of the sixth lens element is f6, a curvature radius of anobject-side surface of the sixth lens element is R11, a curvature radiusof an image-side surface of the sixth lens element is R12, and an axialdistance between an object-side surface of the first lens element and animage surface is TL, the following conditions are satisfied:

|f/R11|+|f/R12|<0.95; and

|TL/f6|<0.65.

According to yet still another aspect of the present disclosure, aphotographing lens assembly includes seven lens elements. The seven lenselements are, in order from an object side to an image side, a firstlens element, a second lens element, a third lens element, a fourth lenselement, a fifth lens element, a sixth lens element and a seventh lenselement. The first lens element has positive refractive power. Thesecond lens element has positive refractive power. The seventh lenselement has an image-side surface being concave in a paraxial regionthereof, and the image-side surface of the seventh lens element has atleast one convex shape in an off-axis region thereof. When a focallength of the photographing lens assembly is f, a curvature radius of anobject-side surface of the second lens element is R3, a curvature radiusof an image-side surface of the second lens element is R4, a curvatureradius of an object-side surface of the sixth lens element is R11, acurvature radius of an image-side surface of the sixth lens element isR12, and an entrance pupil diameter of the photographing lens assemblyis EPD, the following conditions are satisfied:

|f/R11|+|f/R12|<1.80;

(R3+R4)/(R3−R4)<1.80; and

f/EPD<2.0.

BRIEF DESCRIPTION OF THE DRAWINGS

The disclosure can be more fully understood by reading the followingdetailed description of the embodiments, with reference made to theaccompanying drawings as follows:

FIG. 1 is a schematic view of an image capturing unit according to the1st embodiment of the present disclosure;

FIG. 2 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 1stembodiment;

FIG. 3 is a schematic view of an image capturing unit according to the2nd embodiment of the present disclosure;

FIG. 4 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 2ndembodiment;

FIG. 5 is a schematic view of an image capturing unit according to the3rd embodiment of the present disclosure;

FIG. 6 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 3rdembodiment;

FIG. 7 is a schematic view of an image capturing unit according to the4th embodiment of the present disclosure;

FIG. 8 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 4thembodiment;

FIG. 9 is a schematic view of an image capturing unit according to the5th embodiment of the present disclosure;

FIG. 10 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 5thembodiment;

FIG. 11 is a schematic view of an image capturing unit according to the6th embodiment of the present disclosure;

FIG. 12 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 6thembodiment;

FIG. 13 is a schematic view of an image capturing unit according to the7th embodiment of the present disclosure;

FIG. 14 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 7thembodiment;

FIG. 15 is a schematic view of an image capturing unit according to the8th embodiment of the present disclosure;

FIG. 16 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 8thembodiment;

FIG. 17 is a schematic view of an image capturing unit according to the9th embodiment of the present disclosure;

FIG. 18 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 9thembodiment;

FIG. 19 is a perspective view of an image capturing unit according tothe 10th embodiment of the present disclosure;

FIG. 20 is one perspective view of an electronic device according to the11th embodiment of the present disclosure;

FIG. 21 is another perspective view of the electronic device in FIG. 20; and

FIG. 22 is a block diagram of the electronic device in FIG. 20 .

DETAILED DESCRIPTION

A photographing lens assembly includes, in order from an object side toan image side, a first lens element, a second lens element, a third lenselement, a fourth lens element, a fifth lens element, a sixth lenselement and a seventh lens element.

There can be an air gap in a paraxial region between every two of thelens elements of the photographing lens assembly that are adjacent toeach other; that is, each of the first through the seventh lens elementscan be a single and non-cemented lens element. The manufacturing processof the cemented lenses is more complex than the non-cemented lenses,particularly when an image-side surface of one lens element and anobject-side surface of the following lens element need to have accuratecurvatures to ensure both lenses being highly cemented. However, duringthe cementing process, those two lens elements might not be highlycemented due to displacement and it is thereby not favorable for theimage quality. Therefore, having an air gap in a paraxial region betweenevery two of the seven lens elements that are adjacent to each other inthe present disclosure is favorable for reducing the complexity of lensmolding processes and improving the image quality.

The first lens element can have positive refractive power; therefore, itis favorable for the incident light being converged together so as totravel into the photographing lens assembly. The first lens element canhave an image-side surface being concave in a paraxial region thereof;therefore, it is favorable for projecting light with large angle ofincidence onto an image surface and reducing the sensitivity of thephotographing lens assembly.

The second lens element has positive refractive power; therefore, it isfavorable for balancing the refractive power distribution at the objectside so as to increase the light convergence capability, therebyreducing the total track length of the photographing lens assembly. Thesecond lens element can have an image-side surface being concave in aparaxial region thereof; therefore, it is favorable for correctingaberrations so as to improve the image quality.

The third lens element has an image-side surface, and the image-sidesurface of the third lens element can have at least one inflectionpoint. Therefore, the shape of the image-side surface of the third lenselement is favorable for correcting off-axis aberrations so as toimprove the image quality.

The fourth lens element can have positive refractive power; therefore,it is favorable for reducing the total track length of the photographinglens assembly so as to achieve compactness. The fourth lens element canhave an object-side surface being convex in a paraxial region thereof;therefore, it is favorable for strengthening the refractive power of thefourth lens element so as to further reduce the total track length,thereby reducing the sensitivity of the photographing lens assembly.

The fifth lens element has an image-side surface, and the image-sidesurface of the fifth lens element can have at least one inflectionpoint. Therefore, it is favorable for eliminating stray light generatedby the incident light with large angle of incidence as well asincreasing illuminance by reducing the incident angle of lightprojecting onto the image surface, thereby further improving the imagequality.

The sixth lens element can have negative refractive power; therefore, itis favorable for correcting chromatic aberration so as to furtherimprove the image quality. Either an object-side surface of the sixthlens element, an image-side surface of the sixth lens element or boththe object-side surface and the image-side surface of the sixth lenselement can have at least one inflection point; therefore, adjusting theshape of the surfaces of the sixth lens element is favorable forcorrecting off-axis distortion so as to prevent the image from appearingabnormally.

The seventh lens element can have an object-side surface being convex ina paraxial region thereof; therefore, controlling the shape of theobject-side surface of the seventh lens element is favorable forcorrecting astigmatism so as to improve the image quality. The seventhlens element has an image-side surface being concave in a paraxialregion thereof, and the image-side surface of the seventh lens elementhas at least one convex shape in an off-axis region thereof; therefore,it is favorable for reducing a back focal length of the photographinglens assembly so as to maintain a compact size thereof; also, it isfavorable for correcting field curvature as well as reducing theincident angle of light projecting onto the image surface so as toimprove the quality at the periphery of the image.

When a focal length of the photographing lens assembly is f, a curvatureradius of the object-side surface of the sixth lens element is R11, anda curvature radius of the image-side surface of the sixth lens elementis R12, the following condition is satisfied: |f/R11|+|f/R12|<1.80.Therefore, adjusting the shape of each surface of the sixth lens elementis favorable for obtaining a balance between less molding problems andlow sensitivity as well as correcting aberrations at the image side soas to improve the image quality. Preferably, the following condition canbe satisfied: |f/R11|+|f/R12|<1.40. More preferably, the followingcondition can be satisfied: |f/R11|+|f/R12|<0.95. Much more preferably,the following condition can also be satisfied: |f/R11|+|f/R12|<0.80.

When a curvature radius of an object-side surface of the second lenselement is R3, and a curvature radius of the image-side surface of thesecond lens element is R4, the following condition can be satisfied:(R3+R4)/(R3−R4)<1.80. Therefore, adjusting the shape of the second lenselement is favorable for balancing the positive refractive power at theobject side so as to reduce the total track length of the photographinglens assembly; furthermore, it is favorable for light with large angleof incidence traveling into the photographing lens assembly. Preferably,the following condition can be satisfied: −25.0<(R3+R4)/(R3−R4)<1.50.More preferably, the following condition can also be satisfied:−20.0<(R3+R4)/(R3−R4)<1.0.

When an axial distance between an object-side surface of the first lenselement and the image surface is TL, and an entrance pupil diameter ofthe photographing lens assembly is EPD, the following condition can besatisfied: TL/EPD<2.80. Therefore, it is favorable for increasingaperture in a condition of short total track length so as tosimultaneously satisfy the requirements of compactness and largeaperture, thus the photographing lens assembly is applicable to variouskinds of electronic devices. Preferably, the following condition can besatisfied: 1.0<TL/EPD<2.55. More preferably, the following condition canalso be satisfied: 1.0<TL/EPD<2.20.

When the axial distance between the object-side surface of the firstlens element and the image surface is TL, and a focal length of thesixth lens element is f6, the following condition can be satisfied:|TL/f6|<0.65. Therefore, it is favorable for properly arranging thetotal track length of the photographing lens assembly and the strengthof the refractive power of the sixth lens element so as to reduce thesensitivity and achieve compactness. Preferably, the following conditioncan also be satisfied: 0.10<|TL/f6|<0.50.

When the focal length of the photographing lens assembly is f, and theentrance pupil diameter of the photographing lens assembly is EPD, thefollowing condition can be satisfied: f/EPD<2.0. Therefore, it isfavorable for providing sufficient amount of incident light to increaseilluminance on the image surface, so that an imaging capturing unitincluding the photographing lens assembly is able to capture enoughimage information in low light condition (for example, at night) ordynamic photography (for example, short exposure photography);furthermore, it is favorable for the electronic devices equipped withthe imaging capturing unit generating high-quality images after imageprocessing, thereby being usable under various conditions. Preferably,the following condition can also be satisfied: 0.80<f/EPD<1.80.

When the focal length of the photographing lens assembly is f, and afocal length of the first lens element is f1, the following conditioncan be satisfied: −0.50≤f/f1≤0.88. Therefore, it is favorable forproperly arranging the strength of the refractive power of the firstlens element so as to capture light with large angle of incidence andcorrect spherical aberration.

When the axial distance between the object-side surface of the firstlens element and the image surface is TL, the entrance pupil diameter ofthe photographing lens assembly is EPD, and a maximum image height ofthe photographing lens assembly (half of a diagonal length of aneffective photosensitive area of an image sensor) is ImgH, the followingcondition can be satisfied: (TL)²/(EPD×ImgH)<4.10. Therefore, it isfavorable for properly arranging the specifications of the photographinglens assembly, such as the total track length, the size of aperture stopand the area of image surface, so as to be applicable to various kindsof electronic devices. Preferably, the following condition can besatisfied: (TL)²/(EPD×ImgH)<3.80. More preferably, the followingcondition can also be satisfied: 1.0<(TL)²/(EPD×ImgH)<3.30.

When a curvature radius of an image-side surface of the fourth lenselement is R8, and a curvature radius of an object-side surface of thefifth lens element is R9, the following condition can be satisfied:(R8+R9)/(R8−R9)<7.50. Therefore, both the image-side surface of thefourth lens element and the object-side surface of the fifth lenselement have a proper shape which is favorable for assembling lenselements and correcting aberrations.

When a maximum value among axial distances between every two of theseven lens elements of the photographing lens assembly that are adjacentto each other is ATmax, and a minimum value among axial distancesbetween every two of the seven lens elements of the photographing lensassembly that are adjacent to each other is ATmin, the followingcondition can be satisfied: 1.50<ATmax/ATmin<25.0. Therefore, balancingthe configuration of the lens elements is favorable for effectivelyutilizing the space in the photographing lens assembly and increasingassembling yield rate. Preferably, the following condition can also besatisfied: 5.0<ATmax/ATmin<19.0.

When half of a maximum field of view of the photographing lens assemblyis HFOV, the following condition can be satisfied: 38.0 [deg.]<HFOV<55.0[deg.]. Therefore, it is favorable for providing sufficient field ofview so as to expand the range of application.

When the axial distance between the object-side surface of the firstlens element and the image surface is TL, and the maximum image heightof the photographing lens assembly is ImgH, the following condition canbe satisfied: 1.0<TL/ImgH<1.80. Therefore, it is favorable for reducingthe size of photographing lens assembly as well as increasing the areaof image surface.

When an Abbe number of the first lens element is V1, and an Abbe numberof the fourth lens element is V4, the following condition can besatisfied: |V1−V4|<25.0. Therefore, the materials of the first and thefourth lens elements are properly selected so as to increase the lightconvergence capability, thereby further reducing the total track lengthof the photographing lens assembly.

According to the present disclosure, the photographing lens assemblyfurther includes an aperture stop. When an axial distance between theaperture stop and an object-side surface of the third lens element isDsr5, and an axial distance between the aperture stop and the image-sidesurface of the third lens element is Dsr6, the following condition canbe satisfied: |Dsr5/Dsr6|<1.0. Therefore, it is favorable for properlyarranging the position of the aperture stop so as to reduce the totaltrack length of the photographing lens assembly as well as improve theimage-sensing efficiency of an image sensor.

When a curvature radius of the object-side surface of the seventh lenselement is R13, and a curvature radius of the image-side surface of theseventh lens element is R14, the following condition can be satisfied:−4.0<(R13+R14)/(R13−R14)<4.0. Therefore, adjusting the shape of theseventh lens element is favorable for correcting aberrations at theimage side of the photographing lens assembly so as to improve the imagequality.

When the focal length of the first lens element is f1, and a focallength of the seventh lens element is f7, the following condition can besatisfied: |f7/f1|<4.0. Therefore, it is favorable for properlyarranging the refractive power of the first lens element and therefractive power of the seventh lens element so as to obtain a balancebetween low sensitivity and compactness. Preferably, the followingcondition can also be satisfied: |f7/f1|<0.72.

When an Abbe number of the fifth lens element is V5, the followingcondition can be satisfied: 10.0<V5<40.0. Therefore, selecting thematerial of the fifth lens element is favorable for correcting chromaticaberration so as to prevent image overlap, thereby improving the imagequality.

When an axial distance between the image-side surface of the seventhlens element and the image surface is BL, and the entrance pupildiameter of the photographing lens assembly is EPD, the followingcondition can be satisfied: BL/EPD≤0.35. Therefore, it is favorable forsimultaneously reducing the back focal length and enlarging the apertureso as to keep the photographing lens assembly compact and increasebrightness on the image surface.

When a minimum value among Abbe numbers of the seven lens elements ofthe photographing lens assembly is Vmin, the following condition can besatisfied: Vmin<21.5. Therefore, the arrangement of the material of eachlens element is favorable for correcting chromatic aberration so as tomaintain high image quality when the photographing lens assembly is withhigh specifications.

When the axial distance between the object-side surface of the firstlens element and the image surface is TL, and an axial distance betweenthe sixth lens element and the seventh lens element is T67, thefollowing condition can be satisfied: 2.0<TL/T67<12.0. Therefore,adjusting the ratio of the total track length to the axial distancebetween the sixth lens element and the seventh lens element is favorablefor satisfying the requirements of short total track length and largeaperture as well as improving the image quality at the periphery of theimage by correcting off-axis aberrations.

When a focal length of the second lens element is f2, and the focallength of the sixth lens element is f6, the following condition can besatisfied: |f2/f6|<3.20. Therefore, it is favorable for properlyarranging the refractive power of the second lens element and therefractive power of the sixth lens element so as to obtain a balanceamong low sensitivity, compactness and high image quality, therebyproviding good experience in photography. Preferably, the followingcondition can also be satisfied: |f2/f6|<1.0.

When an axial distance between the third lens element and the fourthlens element is T34, and an axial distance between the fifth lenselement and the sixth lens element is T56, the following condition canbe satisfied: 0<T34/T56<10.0. Therefore, the axial distances betweeneach adjacent lens element are properly arranged so that it is favorablefor assembling lens elements and increasing manufacturing yield rate.

When an Abbe number of the third lens element is V3, the Abbe number ofthe fifth lens element is V5, and an Abbe number of the sixth lenselement is V6, the following condition can be satisfied:30.0<V3+V5+V6<90.0. Therefore, the material of each lens element isproperly selected so as to be favorable for improving the capability ofcorrecting aberrations for the demand of higher specifications.

According to the present disclosure, the lens elements thereof can bemade of glass or plastic material. When the lens elements are made ofglass material, the distribution of the refractive power of the lenssystem may be more flexible to design. When the lens elements are madeof plastic material, the manufacturing cost can be effectively reduced.Furthermore, surfaces of each lens element can be arranged to beaspheric, since the aspheric surface of the lens element is easy to forma shape other than spherical surface so as to have more controllablevariables for eliminating the aberration thereof, and to furtherdecrease the required number of the lens elements. Therefore, the totaltrack length of the lens system can also be reduced.

According to the present disclosure, each of an object-side surface andan image-side surface has a paraxial region and an off-axis region. Theparaxial region refers to the region of the surface where light raystravel close to the optical axis, and the off-axis region refers to theregion of the surface away from the paraxial region. Particularly, whenthe lens element has a convex surface, it indicates that the surface isconvex in the paraxial region thereof; when the lens element has aconcave surface, it indicates that the surface is concave in theparaxial region thereof. Moreover, when a region of refractive power orfocus of a lens element is not defined, it indicates that the region ofrefractive power or focus of the lens element is in the paraxial regionthereof.

According to the present disclosure, a critical point is a non-axialpoint of the lens surface where its tangent is perpendicular to theoptical axis. Furthermore, an inflection point is a point of the lenssurface at which the surface changes from concave to convex, or viceversa.

According to the present disclosure, an image surface of thephotographing lens assembly, based on the corresponding image sensor,can be flat or curved, especially a curved surface being concave facingtowards the object side of the photographing lens assembly.

According to the present disclosure, an image correction unit, such as afield flattener, can be optionally disposed between the lens elementclosest to the image side of the photographing lens assembly and theimage surface for correction of aberrations such as field curvature. Theoptical properties of the image correction unit, such as curvature,thickness, index of refraction, position and surface shape (convex orconcave surface with spherical, aspheric, diffraction or Fresnelmorphology), can be adjusted according to the demand of an imagecapturing unit. In general, a preferable image correction unit is, forexample, a light-permeable thin element having a concave object-sidesurface and a planar image-side surface, and the thin element isdisposed near the image surface.

According to the present disclosure, the photographing lens assembly caninclude at least one stop, such as an aperture stop, a glare stop or afield stop. Said glare stop or said field stop is set for eliminatingthe stray light and thereby improving the image quality thereof.

According to the present disclosure, an aperture stop can be configuredas a front stop or a middle stop. A front stop disposed between animaged object and the first lens element can provide a longer distancebetween an exit pupil of the lens system and the image surface toproduce a telecentric effect, and thereby improves the image-sensingefficiency of an image sensor (for example, CCD or CMOS). A middle stopdisposed between the first lens element and the image surface isfavorable for enlarging the view angle of the photographing lensassembly and thereby provides a wider field of view for the same.

According to the above description of the present disclosure, thefollowing specific embodiments are provided for further explanation.

1st Embodiment

FIG. 1 is a schematic view of an image capturing unit according to the1st embodiment of the present disclosure. FIG. 2 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 1stembodiment. In FIG. 1 , the image capturing unit includes thephotographing lens assembly (its reference numeral is omitted) of thepresent disclosure and an image sensor 195. The photographing lensassembly includes, in order from an object side to an image side, anaperture stop 100, a first lens element 110, a second lens element 120,a third lens element 130, a stop 101, a fourth lens element 140, a fifthlens element 150, a sixth lens element 160, a seventh lens element 170,a filter 180 and an image surface 190. The photographing lens assemblyincludes seven single and non-cemented lens elements (110, 120, 130,140, 150, 160 and 170) with no additional lens element disposed betweenthe first lens element 110 and the seventh lens element 170.

The first lens element 110 with positive refractive power has anobject-side surface 111 being convex in a paraxial region thereof and animage-side surface 112 being concave in a paraxial region thereof. Thefirst lens element 110 is made of plastic material and has theobject-side surface 111 and the image-side surface 112 being bothaspheric.

The second lens element 120 with positive refractive power has anobject-side surface 121 being convex in a paraxial region thereof and animage-side surface 122 being concave in a paraxial region thereof. Thesecond lens element 120 is made of plastic material and has theobject-side surface 121 and the image-side surface 122 being bothaspheric.

The third lens element 130 with negative refractive power has anobject-side surface 131 being concave in a paraxial region thereof andan image-side surface 132 being concave in a paraxial region thereof.The third lens element 130 is made of plastic material and has theobject-side surface 131 and the image-side surface 132 being bothaspheric. The image-side surface 132 of the third lens element 130 hasat least one inflection point.

The fourth lens element 140 with positive refractive power has anobject-side surface 141 being convex in a paraxial region thereof and animage-side surface 142 being concave in a paraxial region thereof. Thefourth lens element 140 is made of plastic material and has theobject-side surface 141 and the image-side surface 142 being bothaspheric.

The fifth lens element 150 with positive refractive power has anobject-side surface 151 being convex in a paraxial region thereof and animage-side surface 152 being convex in a paraxial region thereof. Thefifth lens element 150 is made of plastic material and has theobject-side surface 151 and the image-side surface 152 being bothaspheric. The image-side surface 152 of the fifth lens element 150 hasat least one inflection point.

The sixth lens element 160 with negative refractive power has anobject-side surface 161 being concave in a paraxial region thereof andan image-side surface 162 being concave in a paraxial region thereof.The sixth lens element 160 is made of plastic material and has theobject-side surface 161 and the image-side surface 162 being bothaspheric. Both the object-side surface 161 and the image-side surface162 of the sixth lens element 160 have at least one inflection point.

The seventh lens element 170 with negative refractive power has anobject-side surface 171 being convex in a paraxial region thereof and animage-side surface 172 being concave in a paraxial region thereof. Theseventh lens element 170 is made of plastic material and has theobject-side surface 171 and the image-side surface 172 being bothaspheric. The image-side surface 172 of the seventh lens element 170 hasat least one convex shape in an off-axis region thereof.

The filter 180 is made of glass and located between the seventh lenselement 170 and the image surface 190, and will not affect the focallength of the photographing lens assembly. The image sensor 195 isdisposed on or near the image surface 190 of the photographing lensassembly.

The equation of the aspheric surface profiles of the aforementioned lenselements of the 1st embodiment is expressed as follows:

${{X(Y)} = {{\left( {Y^{2}/R} \right)/\left( {1 + {sqr{t\left( {1 - {\left( {1 + k} \right) \times \left( {Y/R} \right)^{2}}} \right)}}} \right)} + {\sum\limits_{i}{({Ai}) \times \left( Y^{i} \right)}}}},$

where,

X is the relative distance between a point on the aspheric surfacespaced at a distance Y from an optical axis and the tangential plane atthe aspheric surface vertex on the optical axis;

Y is the vertical distance from the point on the aspheric surface to theoptical axis;

R is the curvature radius;

k is the conic coefficient; and

Ai is the i-th aspheric coefficient, and in the embodiments, i may be,but is not limited to, 4, 6, 8, 10, 12, 14 and 16.

In the photographing lens assembly of the image capturing unit accordingto the 1st embodiment, when a focal length of the photographing lensassembly is f, an f-number of the photographing lens assembly is Fno,and half of a maximum field of view of the photographing lens assemblyis HFOV, these parameters have the following values: f=3.65 millimeters(mm), Fno=1.43, HFOV=43.7 degrees (deg.).

When an Abbe number of the fifth lens element 150 is V5, the followingcondition is satisfied: V5=37.4.

When an Abbe number of the first lens element 110 is V1, and an Abbenumber of the fourth lens element 140 is V4, the following condition issatisfied: |V1−V4|=0.1.

When an Abbe number of the third lens element 130 is V3, the Abbe numberof the fifth lens element 150 is V5, and an Abbe number of the sixthlens element 160 is V6, the following condition is satisfied:V3+V5+V6=78.2.

When a minimum value among Abbe numbers of the seven lens elements ofthe photographing lens assembly is Vmin, the following condition issatisfied: Vmin=20.4. In this embodiment, the second lens element 120has the same value of Abbe number as the third lens element 130 and thesixth lens element 160, and the Abbe numbers of the second lens element120, the third lens element 130 and the sixth lens element 160 are allsmaller than the Abbe numbers of the first lens element 110, the fourthlens element 140, the fifth lens element 150 and the seventh lenselement 170. Thus, Vmin is equal to the Abbe number of the second lenselement 120, the third lens element 130 or the sixth lens element 160.

When an axial distance between the third lens element 130 and the fourthlens element 140 is T34, and an axial distance between the fifth lenselement 150 and the sixth lens element 160 is T56, the followingcondition is satisfied: T34/T56=0.67. In this embodiment, an axialdistance between two adjacent lens elements is an air gap in a paraxialregion between the two adjacent lens elements.

When a maximum value among axial distances between every two of theseven lens elements of the photographing lens assembly that are adjacentto each other is ATmax, and a minimum value among axial distancesbetween every two of the seven lens elements of the photographing lensassembly that are adjacent to each other is ATmin, the followingcondition is satisfied: ATmax/ATmin=18.35. In this embodiment, ATmax isequal to an axial distance between the sixth lens element 160 and theseventh lens element 170, and ATmin is equal to the axial distancebetween the third lens element 130 and the fourth lens element 140.

When an axial distance between the object-side surface 111 of the firstlens element 110 and the image surface 190 is TL, and the axial distancebetween the sixth lens element 160 and the seventh lens element 170 isT67, the following condition is satisfied: TL/T67=6.79.

When the axial distance between the object-side surface 111 of the firstlens element 110 and the image surface 190 is TL, and an entrance pupildiameter of the photographing lens assembly is EPD, the followingcondition is satisfied: TL/EPD=1.95.

When the axial distance between the object-side surface 111 of the firstlens element 110 and the image surface 190 is TL, and a focal length ofthe sixth lens element 160 is f6, the following condition is satisfied:|TL/f6|=0.50.

When a curvature radius of the object-side surface 121 of the secondlens element 120 is R3, and a curvature radius of the image-side surface122 of the second lens element 120 is R4, the following condition issatisfied: (R3+R4)/(R3−R4)=−19.85.

When a curvature radius of the image-side surface 142 of the fourth lenselement 140 is R8, and a curvature radius of the object-side surface 151of the fifth lens element 150 is R9, the following condition issatisfied: (R8+R9)/(R8−R9)=1.89.

When a curvature radius of the object-side surface 171 of the seventhlens element 170 is R13, and a curvature radius of the image-sidesurface 172 of the seventh lens element 170 is R14, the followingcondition is satisfied: (R13+R14)/(R13−R14)=2.52.

When the focal length of the photographing lens assembly is f, acurvature radius of the object-side surface 161 of the sixth lenselement 160 is R11, and a curvature radius of the image-side surface 162of the sixth lens element 160 is R12, the following condition issatisfied: |f/R11|+|f/R12|=0.55.

When the focal length of the photographing lens assembly is f, and theentrance pupil diameter of the photographing lens assembly is EPD, thefollowing condition is satisfied: f/EPD=1.43.

When the focal length of the photographing lens assembly is f, and afocal length of the first lens element 110 is f1, the followingcondition is satisfied: f/f1=0.51.

When the focal length of the first lens element 110 is f1, and a focallength of the seventh lens element 170 is f7, the following condition issatisfied: |f7/f1|=0.51.

When a focal length of the second lens element 120 is f2, and the focallength of the sixth lens element 160 is f6, the following condition issatisfied: |f2/f6|=3.04

When the axial distance between the object-side surface 111 of the firstlens element 110 and the image surface 190 is TL, the entrance pupildiameter of the photographing lens assembly is EPD, and a maximum imageheight of the photographing lens assembly is ImgH, the followingcondition is satisfied: (TL)²/(EPD×ImgH)=2.72.

When an axial distance between the image-side surface 172 of the seventhlens element 170 and the image surface 190 is BL, and the entrance pupildiameter of the photographing lens assembly is EPD, the followingcondition is satisfied: BL/EPD=0.27.

When the axial distance between the object-side surface 111 of the firstlens element 110 and the image surface 190 is TL, and the maximum imageheight of the photographing lens assembly is ImgH, the followingcondition is satisfied: TL/ImgH=1.39.

When an axial distance between the aperture stop 100 and the object-sidesurface 131 of the third lens element 130 is Dsr5, and an axial distancebetween the aperture stop 100 and the image-side surface 132 of thethird lens element 130 is Dsr6, the following condition is satisfied:|Dsr5/Dsr6|=0.80.

The detailed optical data of the 1st embodiment are shown in Table 1 andthe aspheric surface data are shown in Table 2 below.

TABLE 1 1st Embodiment f = 3.65 mm, Fno = 1.43, HFOV = 43.7 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Ape. Stop Plano −0.454  2 Lens 1 1.987 (ASP) 0.599Plastic 1.545 56.0 7.20 3 3.601 (ASP) 0.050 4 Lens 2 2.537 (ASP) 0.210Plastic 1.660 20.4 30.59 5 2.806 (ASP) 0.415 6 Lens 3 −43.478 (ASP)0.210 Plastic 1.660 20.4 −8.46 7 6.420 (ASP) 0.020 8 Stop Plano 0.020 9Lens 4 4.137 (ASP) 0.591 Plastic 1.544 55.9 8.67 10 32.146 (ASP) 0.33911 Lens 5 9.897 (ASP) 0.324 Plastic 1.566 37.4 3.22 12 −2.204 (ASP)0.060 13 Lens 6 −103.937 (ASP) 0.374 Plastic 1.660 20.4 −10.07 14 7.109(ASP) 0.734 15 Lens 7 2.460 (ASP) 0.360 Plastic 1.566 37.4 −3.64 161.061 (ASP) 0.500 17 Filter Plano 0.140 Glass 1.517 64.2 — 18 Plano0.038 19 Image Plano — Note: Reference wavelength is 587.6 nm (d-line).An effective radius of the stop 101 (Surface 8) is 1.140 mm.

TABLE 2 Aspheric Coefficients Surface # 2 3 4 5 6 k = 1.2123E−01−8.1463E+01 −2.9606E+01 −2.1118E+01 −6.0311E+01 A4 = −6.0847E−03 −1.1534E−01 −1.5342E−01 −3.8433E−03 −8.5367E−02 A6 = 4.6187E−03 2.0543E−01  2.5024E−01 −2.1262E−02 −3.3252E−02 A8 = 1.3332E−02−1.8722E−01 −2.0425E−01  1.3221E−01  4.2346E−02 A10 = −3.0928E−02  9.3754E−02  8.9312E−02 −1.9097E−01 −6.8905E−02 A12 = 2.3951E−02−1.7944E−02 −1.0768E−02  1.0349E−01  2.3887E−02 A14 = −6.8343E−03 −4.7086E−03 −8.3259E−03 −1.5615E−02  2.2434E−03 A16 = 1.0571E−04 1.8878E−03  3.2717E−03 −4.1970E−03 — Surface # 7 9 10 11 12 k =−4.5124E+01 −7.6236E+01 −5.1486E+01 −2.4133E+01 −9.3591E−01 A4 =−1.4287E−01 −4.7385E−02 −1.1216E−01 −1.8206E−01 −1.5561E−02 A6 = 1.6961E−01  8.9384E−02  9.7452E−02  1.6139E−01  2.2722E−02 A8 =−1.7831E−01 −8.2708E−02 −1.1421E−01 −8.4901E−02  7.6147E−03 A10 = 8.1342E−02  3.3379E−02  8.0023E−02  2.4896E−02 −5.2593E−03 A12 =−1.0124E−02 −4.2789E−03 −3.2122E−02 −3.9237E−03  8.8602E−04 A14 = — — 5.7028E−03  2.6923E−04 −4.5508E−05 A16 = — — — — −7.5216E−07 Surface #13 14 15 16 k = −3.8831E+00 6.3993E+00 −2.5446E+01 −5.7271E+00 A4 = 1.5908E−01 9.9712E−02 −2.2716E−01 −1.0536E−01 A6 = −1.6100E−01−1.1966E−01   1.2811E−01  5.4410E−02 A8 =  7.3714E−02 5.5794E−02−5.8666E−02 −1.9631E−02 A10 = −2.0051E−02 −1.5855E−02   1.7180E−02 4.1573E−03 A12 =  2.9614E−03 2.6818E−03 −2.7854E−03 −5.0056E−04 A14 =−1.7671E−04 −2.4062E−04   2.3067E−04  3.1903E−05 A16 = — 8.6462E−06−7.6706E−06 −8.3637E−07

In Table 1, the curvature radius, the thickness and the focal length areshown in millimeters (mm). Surface numbers 0-19 represent the surfacessequentially arranged from the object side to the image side along theoptical axis. In Table 2, k represents the conic coefficient of theequation of the aspheric surface profiles. A4-A16 represent the asphericcoefficients ranging from the 4th order to the 16th order. The tablespresented below for each embodiment are the corresponding schematicparameter and aberration curves, and the definitions of the tables arethe same as Table 1 and Table 2 of the 1st embodiment. Therefore, anexplanation in this regard will not be provided again.

2nd Embodiment

FIG. 3 is a schematic view of an image capturing unit according to the2nd embodiment of the present disclosure. FIG. 4 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 2ndembodiment. In FIG. 3 , the image capturing unit includes thephotographing lens assembly (its reference numeral is omitted) of thepresent disclosure and an image sensor 295. The photographing lensassembly includes, in order from an object side to an image side, anaperture stop 200, a first lens element 210, a second lens element 220,a third lens element 230, a fourth lens element 240, a fifth lenselement 250, a sixth lens element 260, a seventh lens element 270, afilter 280 and an image surface 290. The photographing lens assemblyincludes seven single and non-cemented lens elements (210, 220, 230,240, 250, 260 and 270) with no additional lens element disposed betweenthe first lens element 210 and the seventh lens element 270.

The first lens element 210 with positive refractive power has anobject-side surface 211 being convex in a paraxial region thereof and animage-side surface 212 being concave in a paraxial region thereof. Thefirst lens element 210 is made of plastic material and has theobject-side surface 211 and the image-side surface 212 being bothaspheric.

The second lens element 220 with positive refractive power has anobject-side surface 221 being concave in a paraxial region thereof andan image-side surface 222 being convex in a paraxial region thereof. Thesecond lens element 220 is made of plastic material and has theobject-side surface 221 and the image-side surface 222 being bothaspheric.

The third lens element 230 with negative refractive power has anobject-side surface 231 being convex in a paraxial region thereof and animage-side surface 232 being concave in a paraxial region thereof. Thethird lens element 230 is made of plastic material and has theobject-side surface 231 and the image-side surface 232 being bothaspheric. The image-side surface 232 of the third lens element 230 hasat least one inflection point.

The fourth lens element 240 with positive refractive power has anobject-side surface 241 being convex in a paraxial region thereof and animage-side surface 242 being convex in a paraxial region thereof. Thefourth lens element 240 is made of plastic material and has theobject-side surface 241 and the image-side surface 242 being bothaspheric.

The fifth lens element 250 with negative refractive power has anobject-side surface 251 being concave in a paraxial region thereof andan image-side surface 252 being convex in a paraxial region thereof. Thefifth lens element 250 is made of plastic material and has theobject-side surface 251 and the image-side surface 252 being bothaspheric. The image-side surface 252 of the fifth lens element 250 hasat least one inflection point.

The sixth lens element 260 with negative refractive power has anobject-side surface 261 being concave in a paraxial region thereof andan image-side surface 262 being convex in a paraxial region thereof. Thesixth lens element 260 is made of plastic material and has theobject-side surface 261 and the image-side surface 262 being bothaspheric. Both the object-side surface 261 and the image-side surface262 of the sixth lens element 260 have at least one inflection point.

The seventh lens element 270 with negative refractive power has anobject-side surface 271 being concave in a paraxial region thereof andan image-side surface 272 being concave in a paraxial region thereof.The seventh lens element 270 is made of plastic material and has theobject-side surface 271 and the image-side surface 272 being bothaspheric. The image-side surface 272 of the seventh lens element 270 hasat least one convex shape in an off-axis region thereof.

The filter 280 is made of glass and located between the seventh lenselement 270 and the image surface 290, and will not affect the focallength of the photographing lens assembly. The image sensor 295 isdisposed on or near the image surface 290 of the photographing lensassembly.

The detailed optical data of the 2nd embodiment are shown in Table 3 andthe aspheric surface data are shown in Table 4 below.

TABLE 3 2nd Embodiment f = 5.06 mm, Fno = 1.55, HFOV = 36.8 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Ape. Stop Plano −0.608  2 Lens 1 2.571 (ASP) 0.736Plastic 1.544 56.0 5.78 3 12.642 (ASP) 0.057 4 Lens 2 −74.009 (ASP)0.567 Plastic 1.544 56.0 53.28 5 −20.884 (ASP) 0.080 6 Lens 3 2.385(ASP) 0.260 Plastic 1.639 23.5 −9.39 7 1.634 (ASP) 0.490 8 Lens 4 11.626(ASP) 1.228 Plastic 1.544 56.0 3.34 9 −2.073 (ASP) 0.090 10 Lens 5−1.424 (ASP) 0.589 Plastic 1.634 23.8 −108.68 11 −1.688 (ASP) 0.050 12Lens 6 −17.881 (ASP) 0.429 Plastic 1.614 26.0 −83.15 13 −27.778 (ASP)0.860 14 Lens 7 −7.966 (ASP) 0.500 Plastic 1.534 55.9 −4.11 15 3.099(ASP) 0.500 16 Filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.214 18Image Plano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 4 Aspheric Coefficients Surface # 2 3 4 5 6 k = −1.5523E+00−2.0954E+01 −3.3619E+00 −1.0000E+00 −1.5093E+00 A4 =  1.0599E−02−2.5037E−02 −3.1524E−03  4.6926E−02 −9.4761E−02 A6 =  1.7788E−03 2.0292E−02  2.1643E−02 −1.5196E−02  4.5017E−02 A8 = −1.2771E−03−8.7210E−03 −1.6771E−02  5.0327E−03 −4.0374E−02 A10 =  9.6918E−04 4.5243E−03  1.1051E−02 −6.6234E−03  2.2020E−02 A12 = −4.3131E−04 1.9186E−03 −5.2990E−04  5.4235E−03 −7.6499E−03 A14 =  1.8078E−04−1.4042E−03 −1.1647E−03 −2.1161E−03  1.5482E−03 A16 = −2.9294E−05 1.8900E−04  2.2408E−04  3.2064E−04 −1.4159E−04 Surface # 7 8 9 10 11 k= −3.2480E+00 −1.0000E+00 −3.1180E+00 −1.1951E+00 −5.1499E+00 A4 =−5.6340E−02 −7.4477E−03  6.7859E−03  1.3165E−01  2.5230E−02 A6 = 3.9870E−02  7.0249E−03 −3.1564E−02 −9.2973E−02 −2.1217E−03 A8 =−2.7116E−02 −1.2646E−02  1.8215E−02  5.5020E−02 −8.5040E−03 A10 = 1.1332E−02  1.3779E−02 −2.2330E−03 −2.2317E−02  4.1235E−03 A12 =−2.8391E−03 −8.5453E−03 −1.5897E−03  5.9484E−03 −9.1531E−04 A14 = 5.0550E−04  2.5686E−03  6.2095E−04 −8.8843E−04  1.1323E−04 A16 =−5.4542E−05 −2.8558E−04 −6.0668E−05  5.4402E−05 −6.3605E−06 Surface # 1213 14 15 k =  4.5626E+00  6.4513E+00 −6.6930E+00 −1.4876E+01 A4 =−4.5464E−02 −1.0274E−01 −8.0545E−02 −2.1049E−02 A6 =  4.7110E−02 7.2963E−02  1.9314E−02  2.1789E−03 A8 = −3.7405E−02 −3.6222E−02−2.6261E−03  1.4977E−04 A10 =  1.4840E−02  1.0607E−02  3.9119E−04−9.3967E−05 A12 = −3.4001E−03 −1.6772E−03 −4.8759E−05  1.3266E−05 A14 = 4.3644E−04  1.3437E−04  3.2908E−06 −8.5447E−07 A16 = −2.3716E−05−4.3091E−06 −8.6817E−08  2.1338E−08

In the 2nd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 2nd embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 3 and Table 4 asthe following values and satisfy the following conditions:

2nd Embodiment f [mm] 5.06 (R3 + R4)/(R3 − R4) 1.79 Fno 1.55 (R8 +R9)/(R8 − R9) 5.39 HFOV [deg.] 36.8 (R13 + R14)/(R13 − R14) 0.44 V5 23.8|f/R11| + |f/R12| 0.47 |V1 − V4| 0.0 f/EPD 1.55 V3 + V5 + V6 73.3 f/f10.88 Vmin 23.5 |f7/f1| 0.71 T34/T56 9.79 |f2/f6| 0.64 ATmax/ATmin 17.19(TL)²/(EPD × ImgH) 3.77 TL/T67 8.08 BL/EPD 0.31 TL/EPD 2.13 TL/ImgH 1.77|TL/f6| 0.08 |Dsr5/Dsr6| 0.76

3rd Embodiment

FIG. 5 is a schematic view of an image capturing unit according to the3rd embodiment of the present disclosure. FIG. 6 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 3rdembodiment. In FIG. 5 , the image capturing unit includes thephotographing lens assembly (its reference numeral is omitted) of thepresent disclosure and an image sensor 395. The photographing lensassembly includes, in order from an object side to an image side, anaperture stop 300, a first lens element 310, a second lens element 320,a third lens element 330, a stop 301, a fourth lens element 340, a fifthlens element 350, a sixth lens element 360, a seventh lens element 370,a filter 380 and an image surface 390. The photographing lens assemblyincludes seven single and non-cemented lens elements (310, 320, 330,340, 350, 360 and 370) with no additional lens element disposed betweenthe first lens element 310 and the seventh lens element 370.

The first lens element 310 with positive refractive power has anobject-side surface 311 being convex in a paraxial region thereof and animage-side surface 312 being concave in a paraxial region thereof. Thefirst lens element 310 is made of plastic material and has theobject-side surface 311 and the image-side surface 312 being bothaspheric.

The second lens element 320 with positive refractive power has anobject-side surface 321 being convex in a paraxial region thereof and animage-side surface 322 being concave in a paraxial region thereof. Thesecond lens element 320 is made of plastic material and has theobject-side surface 321 and the image-side surface 322 being bothaspheric.

The third lens element 330 with negative refractive power has anobject-side surface 331 being concave in a paraxial region thereof andan image-side surface 332 being concave in a paraxial region thereof.The third lens element 330 is made of plastic material and has theobject-side surface 331 and the image-side surface 332 being bothaspheric. The image-side surface 332 of the third lens element 330 hasat least one inflection point.

The fourth lens element 340 with positive refractive power has anobject-side surface 341 being convex in a paraxial region thereof and animage-side surface 342 being concave in a paraxial region thereof. Thefourth lens element 340 is made of plastic material and has theobject-side surface 341 and the image-side surface 342 being bothaspheric.

The fifth lens element 350 with positive refractive power has anobject-side surface 351 being concave in a paraxial region thereof andan image-side surface 352 being convex in a paraxial region thereof. Thefifth lens element 350 is made of plastic material and has theobject-side surface 351 and the image-side surface 352 being bothaspheric. The image-side surface 352 of the fifth lens element 350 hasat least one inflection point.

The sixth lens element 360 with negative refractive power has anobject-side surface 361 being convex in a paraxial region thereof and animage-side surface 362 being concave in a paraxial region thereof. Thesixth lens element 360 is made of plastic material and has theobject-side surface 361 and the image-side surface 362 being bothaspheric. Both the object-side surface 361 and the image-side surface362 of the sixth lens element 360 have at least one inflection point.

The seventh lens element 370 with negative refractive power has anobject-side surface 371 being convex in a paraxial region thereof and animage-side surface 372 being concave in a paraxial region thereof. Theseventh lens element 370 is made of plastic material and has theobject-side surface 371 and the image-side surface 372 being bothaspheric. The image-side surface 372 of the seventh lens element 370 hasat least one convex shape in an off-axis region thereof.

The filter 380 is made of glass and located between the seventh lenselement 370 and the image surface 390, and will not affect the focallength of the photographing lens assembly. The image sensor 395 isdisposed on or near the image surface 390 of the photographing lensassembly.

The detailed optical data of the 3rd embodiment are shown in Table 5 andthe aspheric surface data are shown in Table 6 below.

TABLE 5 3rd Embodiment f = 3.87 mm, Fno = 1.60, HFOV = 41.3 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Ape. Stop Plano −0.401  2 Lens 1 1.942 (ASP) 0.548Plastic 1.545 56.0 6.53 3 3.854 (ASP) 0.050 4 Lens 2 2.670 (ASP) 0.210Plastic 1.660 20.4 32.47 5 2.954 (ASP) 0.429 6 Lens 3 −36.300 (ASP)0.210 Plastic 1.660 20.4 −6.79 7 5.122 (ASP) 0.020 8 Stop Plano 0.020 9Lens 4 3.577 (ASP) 0.554 Plastic 1.544 55.9 7.35 10 32.258 (ASP) 0.28011 Lens 5 −12.956 (ASP) 0.477 Plastic 1.566 37.4 3.69 12 −1.824 (ASP)0.050 13 Lens 6 241.331 (ASP) 0.514 Plastic 1.660 20.4 −11.08 14 7.092(ASP) 0.733 15 Lens 7 2.484 (ASP) 0.360 Plastic 1.566 37.4 −4.00 161.123 (ASP) 0.500 17 Filter Plano 0.210 Glass 1.517 64.2 — 18 Plano0.038 19 Image Plano — Note: Reference wavelength is 587.6 nm (d-line).An effective radius of the stop 301 (Surface 8) is 1.140 mm.

TABLE 6 Aspheric Coefficients Surface # 2 3 4 5 6 k =  2.1713E−01−9.0000E+01 −3.0632E+01 −2.5882E+01 −6.0311E+01 A4 = −2.9169E−03−9.8029E−02 −1.3743E−01  9.8960E−04 −1.1894E−01 A6 = −1.2053E−03 1.9760E−01  2.5630E−01 −2.0849E−02 −2.8350E−02 A8 =  1.7264E−02−1.7945E−01 −2.0890E−01  1.2886E−01  1.0646E−01 A10 = −3.2103E−02 9.2899E−02  8.8960E−02 −1.9579E−01 −2.0366E−01 A12 =  2.5543E−02−2.0712E−02 −8.3585E−03  1.0634E−01  1.5009E−01 A14 = −7.9010E−03−3.8762E−03 −9.5976E−03 −7.3522E−03 −4.0880E−02 A16 =  1.0571E−04 2.0670E−03  3.9777E−03 −9.5946E−03 — Surface # 7 9 10 11 12 k =−4.5124E+01 −7.6236E+01 −5.1486E+01 2.6178E+01 −1.2174E+00 A4 =−1.6352E−01 −1.6723E−02 −1.2828E−01 −1.6146E−01  −2.7921E−03 A6 = 2.1549E−01  6.0414E−02  1.2080E−01 1.4214E−01  2.0933E−02 A8 =−2.3736E−01 −6.4540E−02 −1.2200E−01 −6.8560E−02  −5.0844E−03 A10 = 1.2786E−01  2.6468E−02  8.5025E−02 1.9351E−02  5.1805E−03 A12 =−2.3243E−02 −2.8534E−03 −3.7251E−02 −2.4277E−03  −1.4385E−03 A14 = — — 7.4905E−03 3.3997E−05 −1.1678E−04 A16 = — — — —  4.4890E−05 Surface #13 14 15 16 k = 9.0000E+01  5.9174E+00 −2.2876E+01 −5.6277E+00 A4 =6.5720E−02  4.1774E−03 −2.1340E−01 −1.0049E−01 A6 = −6.4717E−02 −2.9107E−02  1.0811E−01  4.7888E−02 A8 = 1.8635E−02  8.6132E−03−4.6204E−02 −1.5981E−02 A10 = −1.1524E−03  −7.2022E−04  1.3371E−02 3.2245E−03 A12 = −9.6761E−04  −3.2799E−04 −2.1813E−03 −3.7548E−04 A14 =1.8365E−04  9.7157E−05  1.8280E−04  2.3344E−05 A16 = — −7.3936E−06−6.1741E−06 −6.0148E−07

In the 3rd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 3rd embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 5 and Table 6 asthe following values and satisfy the following conditions:

3rd Embodiment f [mm] 3.87 (R3 + R4)/(R3 − R4) −19.76 Fno 1.60 (R8 +R9)/(R8 − R9) 0.43 HFOV [deg.] 41.3 (R13 + R14)/(R13 − R14) 2.65 V5 37.4|f/R11| + |f/R12| 0.56 |V1 − V4| 0.1 f/EPD 1.60 V3 + V5 + V6 78.2 f/f10.59 Vmin 20.4 |f7/f1| 0.61 T34/T56 0.80 |f2/f6| 2.93 ATmax/ATmin 18.33(TL)²/(EPD × ImgH) 3.21 TL/T67 7.10 BL/EPD 0.31 TL/EPD 2.15 TL/ImgH 1.49|TL/f6| 0.47 |Dsr5/Dsr6| 0.80

4th Embodiment

FIG. 7 is a schematic view of an image capturing unit according to the4th embodiment of the present disclosure. FIG. 8 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 4thembodiment. In FIG. 7 , the image capturing unit includes thephotographing lens assembly (its reference numeral is omitted) of thepresent disclosure and an image sensor 495. The photographing lensassembly includes, in order from an object side to an image side, afirst lens element 410, a second lens element 420, an aperture stop 400,a third lens element 430, a fourth lens element 440, a stop 401, a fifthlens element 450, a sixth lens element 460, a seventh lens element 470,a filter 480 and an image surface 490. The photographing lens assemblyincludes seven single and non-cemented lens elements (410, 420, 430,440, 450, 460 and 470) with no additional lens element disposed betweenthe first lens element 410 and the seventh lens element 470.

The first lens element 410 with positive refractive power has anobject-side surface 411 being convex in a paraxial region thereof and animage-side surface 412 being concave in a paraxial region thereof. Thefirst lens element 410 is made of plastic material and has theobject-side surface 411 and the image-side surface 412 being bothaspheric.

The second lens element 420 with positive refractive power has anobject-side surface 421 being convex in a paraxial region thereof and animage-side surface 422 being concave in a paraxial region thereof. Thesecond lens element 420 is made of plastic material and has theobject-side surface 421 and the image-side surface 422 being bothaspheric.

The third lens element 430 with negative refractive power has anobject-side surface 431 being convex in a paraxial region thereof and animage-side surface 432 being concave in a paraxial region thereof. Thethird lens element 430 is made of plastic material and has theobject-side surface 431 and the image-side surface 432 being bothaspheric.

The fourth lens element 440 with positive refractive power has anobject-side surface 441 being concave in a paraxial region thereof andan image-side surface 442 being convex in a paraxial region thereof. Thefourth lens element 440 is made of plastic material and has theobject-side surface 441 and the image-side surface 442 being bothaspheric.

The fifth lens element 450 with negative refractive power has anobject-side surface 451 being concave in a paraxial region thereof andan image-side surface 452 being convex in a paraxial region thereof. Thefifth lens element 450 is made of plastic material and has theobject-side surface 451 and the image-side surface 452 being bothaspheric. The image-side surface 452 of the fifth lens element 450 hasat least one inflection point.

The sixth lens element 460 with positive refractive power has anobject-side surface 461 being convex in a paraxial region thereof and animage-side surface 462 being convex in a paraxial region thereof. Thesixth lens element 460 is made of plastic material and has theobject-side surface 461 and the image-side surface 462 being bothaspheric. The object-side surface 461 of the sixth lens element 460 hasat least one inflection point.

The seventh lens element 470 with negative refractive power has anobject-side surface 471 being convex in a paraxial region thereof and animage-side surface 472 being concave in a paraxial region thereof. Theseventh lens element 470 is made of plastic material and has theobject-side surface 471 and the image-side surface 472 being bothaspheric. The image-side surface 472 of the seventh lens element 470 hasat least one convex shape in an off-axis region thereof.

The filter 480 is made of glass and located between the seventh lenselement 470 and the image surface 490, and will not affect the focallength of the photographing lens assembly. The image sensor 495 isdisposed on or near the image surface 490 of the photographing lensassembly.

The detailed optical data of the 4th embodiment are shown in Table 7 andthe aspheric surface data are shown in Table 8 below.

TABLE 7 4th Embodiment f = 4.69 mm, Fno = 1.94, HFOV = 34.1 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Lens 1 2.458 (ASP) 0.319 Plastic 1.544 55.9 20.18 23.022 (ASP) 0.078 3 Lens 2 1.936 (ASP) 0.610 Plastic 1.544 55.9 3.66 459.126 (ASP) 0.021 5 Ape. Stop Plano 0.035 6 Lens 3 4.488 (ASP) 0.232Plastic 1.671 19.3 −7.12 7 2.266 (ASP) 0.377 8 Lens 4 −25.229 (ASP)0.466 Plastic 1.544 56.0 9.03 9 −4.140 (ASP) −0.030  10 Stop Plano 0.08011 Lens 5 −4.390 (ASP) 0.218 Plastic 1.634 23.8 −9.94 12 −14.744 (ASP)0.354 13 Lens 6 18.352 (ASP) 0.512 Plastic 1.671 19.3 16.78 14 −28.811(ASP) 0.626 15 Lens 7 10.300 (ASP) 0.700 Plastic 1.534 55.9 −4.92 162.044 (ASP) 0.280 17 Filter Plano 0.210 Glass 1.517 64.2 — 18 Plano0.344 19 Image Plano — Note: Reference wavelength is 587.6 nm (d-line).An effective radius of the stop 401 (Surface 10) is 1.100 mm.

TABLE 8 Aspheric Coefficients Surface # 1 2 3 4 6 k = −3.4859E−01−1.9075E+00 −1.0591E+00 −8.9099E+01  −7.3508E+00 A4 = −4.1118E−02−1.0342E−01 −3.1433E−02 2.9757E−02 −2.3965E−02 A6 = −1.3642E−02 8.0104E−05  1.4558E−02 −5.2007E−02   2.2282E−02 A8 = −7.6409E−03 3.7340E−02  2.1952E−02 1.9698E−02 −8.8469E−03 A10 =  9.9717E−03−2.5650E−02 −1.0742E−02 5.4782E−03  1.9890E−02 A12 = −2.4112E−03 9.0680E−03 −3.2682E−03 −5.3353E−03  −5.7875E−03 A14 =  1.3945E−04−1.2685E−03  2.4205E−03 1.2706E−03 −1.8964E−03 Surface # 7 8 9 11 12 k =−1.5588E+01 −7.7796E+01 2.6854E+00 −8.8166E+00 2.0000E+01 A4 = 1.1898E−01 −5.4556E−02 3.6348E−02  3.5686E−02 −4.6109E−02  A6 =−1.4678E−01  1.9067E−02 −2.0190E−01  −1.4731E−01 1.9557E−02 A8 = 2.8781E−01 −1.1892E−01 3.7036E−01  3.2251E−01 2.8462E−02 A10 =−3.2067E−01  2.6551E−01 −3.4458E−01  −2.9490E−01 −3.5223E−02  A12 = 2.3199E−01 −2.9504E−01 1.7606E−01  1.3603E−01 2.0784E−02 A14 =−6.7022E−02  1.8686E−01 −4.1589E−02  −2.7427E−02 −4.7973E−03  A16 = —−4.9104E−02 — — — Surface # 13 14 15 16 k = −5.0000E+01 −1.0000E+00−2.2083E+01 −1.1136E+01 A4 = −1.1099E−01 −7.9075E−02 −1.9385E−01−5.3483E−02 A6 =  5.9054E−02  4.7259E−02  1.0744E−01  1.6294E−02 A8 =−1.3200E−01 −5.8760E−02 −5.8107E−02 −4.3770E−03 A10 =  1.3827E−01 3.9664E−02  2.3628E−02  7.2847E−04 A12 = −8.9998E−02 −1.5544E−02−5.8463E−03 −6.8888E−05 A14 =  3.1304E−02  3.2723E−03  7.8473E−04 2.7532E−06 A16 = −4.9050E−03 −2.8522E−04 −4.3775E−05 —

In the 4th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 4th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 7 and Table 8 asthe following values and satisfy the following conditions:

4th Embodiment f [mm] 4.69 (R3 + R4)/(R3 − R4) −1.07 Fno 1.94 (R8 +R9)/(R8 − R9) −34.15 HFOV [deg.] 34.1 (R13 + R14)/(R13 − R14) 1.50 V523.8 |f/R11| + |f/R12| 0.42 |V1 − V4| 0.1 f/EPD 1.94 V3 + V5 + V6 62.4f/f1 0.23 Vmin 19.3 |f7/f1| 0.24 T34/T56 1.06 |f2/f6| 0.22 ATmax/ATmin12.52 (TL)²/(EPD × ImgH) 3.70 TL/T67 8.68 BL/EPD 0.35 TL/EPD 2.25TL/ImgH 1.65 |TL/f6| 0.32 |Dsr5/Dsr6| 0.13

5th Embodiment

FIG. 9 is a schematic view of an image capturing unit according to the5th embodiment of the present disclosure. FIG. 10 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 5thembodiment. In FIG. 9 , the image capturing unit includes thephotographing lens assembly (its reference numeral is omitted) of thepresent disclosure and an image sensor 595. The photographing lensassembly includes, in order from an object side to an image side, anaperture stop 500, a first lens element 510, a second lens element 520,a third lens element 530, a fourth lens element 540, a fifth lenselement 550, a sixth lens element 560, a seventh lens element 570, afilter 580 and an image surface 590. The photographing lens assemblyincludes seven single and non-cemented lens elements (510, 520, 530,540, 550, 560 and 570) with no additional lens element disposed betweenthe first lens element 510 and the seventh lens element 570.

The first lens element 510 with positive refractive power has anobject-side surface 511 being convex in a paraxial region thereof and animage-side surface 512 being concave in a paraxial region thereof. Thefirst lens element 510 is made of plastic material and has theobject-side surface 511 and the image-side surface 512 being bothaspheric.

The second lens element 520 with positive refractive power has anobject-side surface 521 being convex in a paraxial region thereof and animage-side surface 522 being convex in a paraxial region thereof. Thesecond lens element 520 is made of plastic material and has theobject-side surface 521 and the image-side surface 522 being bothaspheric.

The third lens element 530 with negative refractive power has anobject-side surface 531 being convex in a paraxial region thereof and animage-side surface 532 being concave in a paraxial region thereof. Thethird lens element 530 is made of plastic material and has theobject-side surface 531 and the image-side surface 532 being bothaspheric. The image-side surface 532 of the third lens element 530 hasat least one inflection point.

The fourth lens element 540 with positive refractive power has anobject-side surface 541 being convex in a paraxial region thereof and animage-side surface 542 being convex in a paraxial region thereof. Thefourth lens element 540 is made of plastic material and has theobject-side surface 541 and the image-side surface 542 being bothaspheric.

The fifth lens element 550 with negative refractive power has anobject-side surface 551 being concave in a paraxial region thereof andan image-side surface 552 being convex in a paraxial region thereof. Thefifth lens element 550 is made of plastic material and has theobject-side surface 551 and the image-side surface 552 being bothaspheric. The image-side surface 552 of the fifth lens element 550 hasat least one inflection point.

The sixth lens element 560 with negative refractive power has anobject-side surface 561 being concave in a paraxial region thereof andan image-side surface 562 being convex in a paraxial region thereof. Thesixth lens element 560 is made of plastic material and has theobject-side surface 561 and the image-side surface 562 being bothaspheric. Both the object-side surface 561 and the image-side surface562 of the sixth lens element 560 have at least one inflection point.

The seventh lens element 570 with negative refractive power has anobject-side surface 571 being concave in a paraxial region thereof andan image-side surface 572 being concave in a paraxial region thereof.The seventh lens element 570 is made of plastic material and has theobject-side surface 571 and the image-side surface 572 being bothaspheric. The image-side surface 572 of the seventh lens element 570 hasat least one convex shape in an off-axis region thereof.

The filter 580 is made of glass and located between the seventh lenselement 570 and the image surface 590, and will not affect the focallength of the photographing lens assembly. The image sensor 595 isdisposed on or near the image surface 590 of the photographing lensassembly.

The detailed optical data of the 5th embodiment are shown in Table 9 andthe aspheric surface data are shown in Table 10 below.

TABLE 9 5th Embodiment f = 4.72 mm, Fno = 1.39, HFOV = 38.5 deg. Surface# Curvature Radius Thickness Material Index Abbe # Focal Length 0 ObjectPlano Infinity 1 Ape. Stop Plano −0.648  2 Lens 1 2.607 (ASP) 0.721Plastic 1.544 56.0 6.71 3 8.234 (ASP) 0.065 4 Lens 2 34.695 (ASP) 0.616Plastic 1.544 56.0 22.52 5 −18.821 (ASP) 0.067 6 Lens 3 2.262 (ASP)0.261 Plastic 1.639 23.5 −10.70 7 1.623 (ASP) 0.436 8 Lens 4 9.397 (ASP)1.143 Plastic 1.544 56.0 3.47 9 −2.258 (ASP) 0.094 10 Lens 5 −1.389(ASP) 0.514 Plastic 1.607 26.6 −45.25 11 −1.668 (ASP) 0.051 12 Lens 6−35.650 (ASP) 0.428 Plastic 1.582 30.2 −146.55 13 −61.488 (ASP) 0.861 14Lens 7 −36.630 (ASP) 0.503 Plastic 1.544 56.0 −4.08 15 2.376 (ASP) 0.50016 Filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.048 18 Image Plano —Note: Reference wavelength is 587.6 nm (d-line).

TABLE 10 Aspheric Coefficients Surface # 2 3 4 5 6 k = −1.6384E+00−1.7399E+01  1.5128E+01 1.1614E+00 −1.0879E+00 A4 =  1.0758E−02−2.2661E−02 −2.9570E−03 5.4565E−02 −8.4433E−02 A6 = −2.5437E−03 1.2094E−02  7.9975E−03 −3.2675E−02   3.8438E−02 A8 =  4.8814E−03−1.9748E−04 −1.3335E−03 2.4892E−02 −4.2292E−02 A10 = −3.7869E−03 3.7308E−04  4.1154E−03 −1.7278E−02   2.7034E−02 A12 =  1.7132E−03 2.5870E−03 −2.8463E−04 7.4458E−03 −1.0838E−02 A14 = −3.5681E−04−1.4227E−03 −5.9484E−04 −1.7498E−03   2.4539E−03 A16 =  2.6951E−05 1.9140E−04  1.1365E−04 1.7086E−04 −2.4409E−04 Surface # 7 8 9 10 11 k =−3.0017E+00 −9.5000E+01 −2.4993E+00 −1.2490E+00 −6.1923E+00 A4 =−5.7272E−02 −1.0522E−02  7.0982E−03  1.5689E−01  1.1164E−01 A6 = 4.9731E−02  1.2956E−02 −4.3692E−02 −1.0933E−01 −8.3736E−02 A8 =−4.4574E−02 −1.0492E−02  3.3344E−02  4.7596E−02  2.5985E−02 A10 = 2.5476E−02  6.8579E−03 −1.2549E−02 −1.0798E−02 −3.4301E−03 A12 =−8.7697E−03 −3.0973E−03  2.8254E−03  1.1890E−03 −4.7911E−05 A14 = 1.6805E−03  7.6928E−04 −3.6801E−04 −2.6661E−05  5.7103E−05 A16 =−1.3637E−04 −7.3164E−05  2.5315E−05 −4.6273E−06 −3.9323E−06 Surface # 1213 14 15 k = 7.8231E+00 −4.8941E+01  8.8179E+01 −9.3323E−01 A4 =8.1195E−02 −7.0615E−02 −3.1504E+00 −1.0551E+01 A6 = −8.2991E−02  7.2342E−02 −4.0100E+01  7.9817E+00 A8 = 4.7525E−02 −4.5493E−02 2.3673E+02  6.3233E+01 A10 = −2.3678E−02   1.4238E−02 −6.0975E+02−2.5170E+02 A12 = 7.5248E−03 −2.2930E−03  8.4235E+02  4.0424E+02 A14 =−1.2480E−03   1.8451E−04 −5.9883E+02 −3.1385E+02 A16 = 8.1700E−05−5.8817E−06  1.7415E+02  9.4942E+01

In the 5th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 5th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 9 and Table 10as the following values and satisfy the following conditions:

5th Embodiment f [mm] 4.72 (R3 + R4)/(R3 − R4) 0.30 Fno 1.39 (R8 +R9)/(R8 − R9) 4.20 HFOV [deg.] 38.5 (R13 + R14)/(R13 − R14) 0.88 V5 26.6|f/R11| + |f/R12| 0.21 |V1 − V4| 0.0 f/EPD 1.39 V3 + V5 + V6 80.4 f/f10.70 Vmin 23.5 |f7/f1| 0.61 T34/T56 8.55 |f2/f6| 0.15 ATmax/ATmin 16.90(TL)²/(EPD × ImgH) 3.42 TL/T67 7.67 BL/EPD 0.25 TL/EPD 1.94 TL/ImgH 1.76|TL/f6| 0.05 |Dsr5/Dsr6| 0.76

6th Embodiment

FIG. 11 is a schematic view of an image capturing unit according to the6th embodiment of the present disclosure. FIG. 12 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 6thembodiment. In FIG. 11 , the image capturing unit includes thephotographing lens assembly (its reference numeral is omitted) of thepresent disclosure and an image sensor 695. The photographing lensassembly includes, in order from an object side to an image side, afirst lens element 610, a second lens element 620, an aperture stop 600,a third lens element 630, a fourth lens element 640, a fifth lenselement 650, a sixth lens element 660, a seventh lens element 670, afilter 680 and an image surface 690. The photographing lens assemblyincludes seven single and non-cemented lens elements (610, 620, 630,640, 650, 660 and 670) with no additional lens element disposed betweenthe first lens element 610 and the seventh lens element 670.

The first lens element 610 with positive refractive power has anobject-side surface 611 being convex in a paraxial region thereof and animage-side surface 612 being convex in a paraxial region thereof. Thefirst lens element 610 is made of plastic material and has theobject-side surface 611 and the image-side surface 612 being bothaspheric.

The second lens element 620 with positive refractive power has anobject-side surface 621 being convex in a paraxial region thereof and animage-side surface 622 being concave in a paraxial region thereof. Thesecond lens element 620 is made of plastic material and has theobject-side surface 621 and the image-side surface 622 being bothaspheric.

The third lens element 630 with negative refractive power has anobject-side surface 631 being convex in a paraxial region thereof and animage-side surface 632 being concave in a paraxial region thereof. Thethird lens element 630 is made of plastic material and has theobject-side surface 631 and the image-side surface 632 being bothaspheric. The image-side surface 632 of the third lens element 630 hasat least one inflection point.

The fourth lens element 640 with positive refractive power has anobject-side surface 641 being convex in a paraxial region thereof and animage-side surface 642 being convex in a paraxial region thereof. Thefourth lens element 640 is made of plastic material and has theobject-side surface 641 and the image-side surface 642 being bothaspheric.

The fifth lens element 650 with positive refractive power has anobject-side surface 651 being concave in a paraxial region thereof andan image-side surface 652 being convex in a paraxial region thereof. Thefifth lens element 650 is made of plastic material and has theobject-side surface 651 and the image-side surface 652 being bothaspheric. The image-side surface 652 of the fifth lens element 650 hasat least one inflection point.

The sixth lens element 660 with negative refractive power has anobject-side surface 661 being convex in a paraxial region thereof and animage-side surface 662 being concave in a paraxial region thereof. Thesixth lens element 660 is made of plastic material and has theobject-side surface 661 and the image-side surface 662 being bothaspheric. Both the object-side surface 661 and the image-side surface662 of the sixth lens element 660 have at least one inflection point.

The seventh lens element 670 with negative refractive power has anobject-side surface 671 being convex in a paraxial region thereof and animage-side surface 672 being concave in a paraxial region thereof. Theseventh lens element 670 is made of plastic material and has theobject-side surface 671 and the image-side surface 672 being bothaspheric. The image-side surface 672 of the seventh lens element 670 hasat least one convex shape in an off-axis region thereof.

The filter 680 is made of glass and located between the seventh lenselement 670 and the image surface 690, and will not affect the focallength of the photographing lens assembly. The image sensor 695 isdisposed on or near the image surface 690 of the photographing lensassembly.

The detailed optical data of the 6th embodiment are shown in Table 11and the aspheric surface data are shown in Table 12 below.

TABLE 11 6th Embodiment f = 4.25 mm, Fno = 1.61, HFOV = 35.5 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 4.514 (ASP) 0.569 Plastic 1.544 56.07.13 2 −26.327 (ASP) 0.050 3 Lens 2 3.176 (ASP) 0.397 Plastic 1.544 56.09.44 4 7.958 (ASP) 0.006 5 Ape. Stop Plano 0.044 6 Lens 3 9.674 (ASP)0.240 Plastic 1.639 23.5 −6.94 7 3.009 (ASP) 0.320 8 Lens 4 7.852 (ASP)0.646 Plastic 1.544 56.0 5.15 9 −4.234 (ASP) 0.533 10 Lens 5 −2.272(ASP) 0.353 Plastic 1.544 56.0 16.25 11 −1.906 (ASP) 0.050 12 Lens 63905.428 (ASP) 0.734 Plastic 1.607 26.6 −15.01 13 9.091 (ASP) 0.529 14Lens 7 6.752 (ASP) 0.453 Plastic 1.534 55.9 −4.91 15 1.844 (ASP) 0.64016 Filter Plano 0.100 Glass 1.517 64.2 — 17 Plano 0.025 18 Image Plano —Note: Reference wavelength is 587.6 nm (d-line).

TABLE 12 Aspheric Coefficients Surface # 1 2 3 4 6 k = −3.8854E+00 9.0000E+01 −7.6094E+00 −7.8564E−01 −8.7982E+01 A4 = −2.1748E−02−1.0933E−01 −1.0318E−01  8.3929E−02  6.3915E−02 A6 =  1.0730E−02 1.6978E−01  2.2051E−01 −4.5473E−01 −4.3891E−01 A8 = −1.4245E−02−1.6436E−01 −3.4378E−01  6.9575E−01  9.3956E−01 A10 =  1.2714E−02 1.0465E−01  3.3541E−01 −6.1573E−01 −1.0433E+00 A12 = −5.7902E−03−4.0946E−02 −2.0591E−01  3.2188E−01  6.5633E−01 A14 =  1.2872E−03 8.8021E−03  7.0741E−02 −9.0247E−02 −2.1813E−01 A16 = −1.0895E−04−7.8174E−04 −1.0159E−02  1.0196E−02  2.8908E−02 Surface # 7 8 9 10 11 k= −1.7648E+01 −8.1962E+01 1.8803E−01 1.4515E+00 −9.8410E+00 A4 =−8.0803E−03 −7.7111E−02 3.2031E−03 1.0418E−02 −2.6367E−01 A6 =−1.0559E−01  1.0022E−01 −1.2474E−01  6.2512E−02  5.8779E−01 A8 = 3.5414E−01 −1.7982E−01 2.1473E−01 5.0721E−02 −7.7687E−01 A10 =−4.4742E−01  2.2472E−01 −1.8615E−01  −1.2173E−01   6.3038E−01 A12 = 2.9474E−01 −1.5047E−01 9.1298E−02 9.6527E−02 −2.9215E−01 A14 =−9.8640E−02  5.2999E−02 −2.5508E−02  −3.7559E−02   6.9135E−02 A16 = 1.2777E−02 −7.7048E−03 3.3129E−03 5.4983E−03 −6.4876E−03 Surface # 1213 14 15 k = −3.0608E+01 −8.9576E+01 −2.0862E+00 −2.8609E+00 A4 =−1.9070E−02  9.7011E−03 −1.5706E−01 −1.3931E−01 A6 = −2.2474E−02−2.6203E−02  8.2825E−02  7.3726E−02 A8 =  1.9164E−02  4.0485E−03−4.8481E−02 −2.7415E−02 A10 = −3.8989E−02  2.5030E−03  1.6019E−02 5.8690E−03 A12 =  3.2939E−02 −1.3523E−03 −2.5778E−03 −7.0862E−04 A14 =−1.1657E−02  2.6076E−04  1.9134E−04  4.5283E−05 A16 =  1.3543E−03−1.8230E−05 −5.1446E−06 −1.2000E−06

In the 6th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 6th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 11 and Table 12as the following values and satisfy the following conditions:

6th Embodiment f [mm] 4.25 (R3 + R4)/(R3 − R4) −2.33 Fno 1.61 (R8 +R9)/(R8 − R9) 3.32 HFOV [deg.] 35.5 (R13 + R14)/(R13 − R14) 1.75 V5 56.0|f/R11| + |f/R12| 0.47 |V1 − V4| 0.0 f/EPD 1.61 V3 + V5 + V6 106.1 f/f10.60 Vmin 23.5 |f7/f1| 0.69 T34/T56 6.40 |f2/f6| 0.63 ATmax/ATmin 10.67(TL)²/(EPD × ImgH) 3.96 TL/T67 10.75 BL/EPD 0.29 TL/EPD 2.16 TL/ImgH1.84 |TL/f6| 0.38 |Dsr5/Dsr6| 0.15

7th Embodiment

FIG. 13 is a schematic view of an image capturing unit according to the7th embodiment of the present disclosure. FIG. 14 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 7thembodiment. In FIG. 13 , the image capturing unit includes thephotographing lens assembly (its reference numeral is omitted) of thepresent disclosure and an image sensor 795. The photographing lensassembly includes, in order from an object side to an image side, afirst lens element 710, an aperture stop 700, a second lens element 720,a third lens element 730, a fourth lens element 740, a stop 701, a fifthlens element 750, a sixth lens element 760, a seventh lens element 770,a filter 780 and an image surface 790. The photographing lens assemblyincludes seven single and non-cemented lens elements (710, 720, 730,740, 750, 760 and 770) with no additional lens element disposed betweenthe first lens element 710 and the seventh lens element 770.

The first lens element 710 with negative refractive power has anobject-side surface 711 being convex in a paraxial region thereof and animage-side surface 712 being concave in a paraxial region thereof. Thefirst lens element 710 is made of plastic material and has theobject-side surface 711 and the image-side surface 712 being bothaspheric.

The second lens element 720 with positive refractive power has anobject-side surface 721 being convex in a paraxial region thereof and animage-side surface 722 being concave in a paraxial region thereof. Thesecond lens element 720 is made of plastic material and has theobject-side surface 721 and the image-side surface 722 being bothaspheric.

The third lens element 730 with negative refractive power has anobject-side surface 731 being convex in a paraxial region thereof and animage-side surface 732 being concave in a paraxial region thereof. Thethird lens element 730 is made of plastic material and has theobject-side surface 731 and the image-side surface 732 being bothaspheric.

The fourth lens element 740 with positive refractive power has anobject-side surface 741 being convex in a paraxial region thereof and animage-side surface 742 being concave in a paraxial region thereof. Thefourth lens element 740 is made of plastic material and has theobject-side surface 741 and the image-side surface 742 being bothaspheric.

The fifth lens element 750 with positive refractive power has anobject-side surface 751 being convex in a paraxial region thereof and animage-side surface 752 being convex in a paraxial region thereof. Thefifth lens element 750 is made of plastic material and has theobject-side surface 751 and the image-side surface 752 being bothaspheric. The image-side surface 752 of the fifth lens element 750 hasat least one inflection point.

The sixth lens element 760 with negative refractive power has anobject-side surface 761 being concave in a paraxial region thereof andan image-side surface 762 being concave in a paraxial region thereof.The sixth lens element 760 is made of plastic material and has theobject-side surface 761 and the image-side surface 762 being bothaspheric. Both the object-side surface 761 and the image-side surface762 of the sixth lens element 760 have at least one inflection point.

The seventh lens element 770 with negative refractive power has anobject-side surface 771 being convex in a paraxial region thereof and animage-side surface 772 being concave in a paraxial region thereof. Theseventh lens element 770 is made of plastic material and has theobject-side surface 771 and the image-side surface 772 being bothaspheric. The image-side surface 772 of the seventh lens element 770 hasat least one convex shape in an off-axis region thereof.

The filter 780 is made of glass and located between the seventh lenselement 770 and the image surface 790, and will not affect the focallength of the photographing lens assembly. The image sensor 795 isdisposed on or near the image surface 790 of the photographing lensassembly.

The detailed optical data of the 7th embodiment are shown in Table 13and the aspheric surface data are shown in Table 14 below.

TABLE 13 7th Embodiment f = 4.19 mm, Fno = 1.88, HFOV = 36.1 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 11.537 (ASP) 0.291 Plastic 1.545 56.0−76.20 2 8.947 (ASP) 0.437 3 Ape. Stop Plano −0.387  4 Lens 2 1.622(ASP) 0.665 Plastic 1.566 37.4 2.88 5 260.011 (ASP) 0.050 6 Lens 314.917 (ASP) 0.230 Plastic 1.660 20.4 −2.98 7 1.729 (ASP) 0.124 8 Lens 42.222 (ASP) 0.599 Plastic 1.566 37.4 4.44 9 17.252 (ASP) 0.071 10 StopPlano 0.300 11 Lens 5 29.249 (ASP) 0.387 Plastic 1.639 23.5 31.42 12−63.549 (ASP) 0.362 13 Lens 6 −46.900 (ASP) 0.512 Plastic 1.634 23.8−20.18 14 17.670 (ASP) 0.182 15 Lens 7 3.286 (ASP) 0.681 Plastic 1.54455.9 −7.41 16 1.678 (ASP) 0.350 17 Filter Plano 0.210 Glass 1.517 64.2 —18 Plano 0.250 19 Image Plano — Note: Reference wavelength is 587.6 nm(d-line). An effective radius of the stop 701 (Surface 10) is 1.100 mm.

TABLE 14 Aspheric Coefficients Surface # 1 2 4 5 6 k = −5.4866E+01−2.0890E+01 −7.8406E−01 −9.0000E+01  4.1909E+01 A4 = −2.4378E−02−1.7928E−01 −1.7508E−01 −6.7414E−02 −1.3254E−01 A6 =  1.2470E−01 7.9542E−01  8.9370E−01  8.0173E−01  7.3131E−01 A8 = −1.5936E−01−1.3774E+00 −1.8971E+00 −2.5664E+00 −2.4754E+00 A10 =  1.1199E−01 1.2328E+00  2.3001E+00  3.8900E+00  4.2503E+00 A12 = −3.9711E−02−5.2662E−01 −1.6435E+00 −3.1287E+00 −3.8105E+00 A14 =  5.7170E−03 6.5351E−02  6.4476E−01  1.2745E+00  1.7185E+00 A16 =  7.4063E−05 1.2305E−02 −1.0766E−01 −2.0565E−01 −3.0879E−01 Surface # 7 8 9 11 12 k= −2.5024E+00  1.9960E+00 −2.5690E+01 −9.9585E−01 −9.9633E−01 A4 =−5.9227E−02 −3.9041E−03  1.3784E−02 −1.7366E−02  6.1846E−02 A6 = 1.1840E−01 −9.3004E−02 −3.9756E−02 −3.6315E−01 −4.9113E−01 A8 =−5.8587E−01  6.2376E−02  1.7173E−01  7.3897E−01  8.0144E−01 A10 = 1.5888E+00  5.1006E−02 −3.9144E−01 −7.8264E−01 −7.9205E−01 A12 =−1.9011E+00 −1.4568E−01  4.2027E−01  2.3786E−01  4.5045E−01 A14 = 1.0964E+00  1.1622E−01 −2.3030E−01  1.7441E−01 −1.2968E−01 A16 =−2.5172E−01 −3.5882E−02  4.7429E−02 −1.1396E−01  1.4551E−02 Surface # 1314 15 16 k = −4.9995E+01 1.7203E+01 −4.1519E+00 −5.3519E+00 A4 = 8.5144E−01 4.3349E−02 −3.0040E−01 −1.3722E−01 A6 = −4.7046E+00−7.6235E−02   1.8426E−01  7.2675E−02 A8 =  1.1007E+01 3.2052E−02−7.2992E−02 −3.1117E−02 A10 = −1.8871E+01 −9.9317E−03   1.9827E−02 8.5753E−03 A12 =  1.8865E+01 2.6446E−03 −3.3750E−03 −1.4045E−03 A14 =−9.4459E+00 −4.2032E−04   3.1657E−04  1.2274E−04 A16 =  1.8588E+002.5666E−05 −1.2366E−05 −4.3287E−06

In the 7th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 7th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 13 and Table 14as the following values and satisfy the following conditions:

7th Embodiment f [mm] 4.19 (R3 + R4)/(R3 − R4) −1.01 Fno 1.88 (R8 +R9)/(R8 − R9) −3.88 HFOV [deg.] 36.1 (R13 + R14)/(R13 − R14) 3.09 V523.5 |f/R11| + |f/R12| 0.33 |V1 − V4| 18.6 f/EPD 1.88 V3 + V5 + V6 67.7f/f1 −0.06 Vmin 20.4 |f7/f1| 0.10 T34/T56 0.34 |f2/f6| 0.14 ATmax/ATmin7.42 (TL)²/(EPD × ImgH) 4.08 TL/T67 29.15 BL/EPD 0.36 TL/EPD 2.38TL/ImgH 1.71 |TL/f6| 0.26 |Dsr5/Dsr6| 0.59

8th Embodiment

FIG. 15 is a schematic view of an image capturing unit according to the8th embodiment of the present disclosure. FIG. 16 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 8thembodiment. In FIG. 15 , the image capturing unit includes thephotographing lens assembly (its reference numeral is omitted) of thepresent disclosure and an image sensor 895. The photographing lensassembly includes, in order from an object side to an image side, afirst lens element 810, a second lens element 820, a third lens element830, an aperture stop 800, a fourth lens element 840, a fifth lenselement 850, a sixth lens element 860, a seventh lens element 870, afilter 880 and an image surface 890. The photographing lens assemblyincludes seven single and non-cemented lens elements (810, 820, 830,840, 850, 860 and 870) with no additional lens element disposed betweenthe first lens element 810 and the seventh lens element 870.

The first lens element 810 with negative refractive power has anobject-side surface 811 being concave in a paraxial region thereof andan image-side surface 812 being convex in a paraxial region thereof. Thefirst lens element 810 is made of plastic material and has theobject-side surface 811 and the image-side surface 812 being bothaspheric.

The second lens element 820 with positive refractive power has anobject-side surface 821 being convex in a paraxial region thereof and animage-side surface 822 being concave in a paraxial region thereof. Thesecond lens element 820 is made of plastic material and has theobject-side surface 821 and the image-side surface 822 being bothaspheric.

The third lens element 830 with positive refractive power has anobject-side surface 831 being convex in a paraxial region thereof and animage-side surface 832 being convex in a paraxial region thereof. Thethird lens element 830 is made of plastic material and has theobject-side surface 831 and the image-side surface 832 being bothaspheric. The image-side surface 832 of the third lens element 830 hasat least one inflection point.

The fourth lens element 840 with negative refractive power has anobject-side surface 841 being convex in a paraxial region thereof and animage-side surface 842 being concave in a paraxial region thereof. Thefourth lens element 840 is made of plastic material and has theobject-side surface 841 and the image-side surface 842 being bothaspheric.

The fifth lens element 850 with positive refractive power has anobject-side surface 851 being convex in a paraxial region thereof and animage-side surface 852 being concave in a paraxial region thereof. Thefifth lens element 850 is made of plastic material and has theobject-side surface 851 and the image-side surface 852 being bothaspheric. The image-side surface 852 of the fifth lens element 850 hasat least one inflection point.

The sixth lens element 860 with negative refractive power has anobject-side surface 861 being concave in a paraxial region thereof andan image-side surface 862 being concave in a paraxial region thereof.The sixth lens element 860 is made of plastic material and has theobject-side surface 861 and the image-side surface 862 being bothaspheric. Both the object-side surface 861 and the image-side surface862 of the sixth lens element 860 have at least one inflection point.

The seventh lens element 870 with positive refractive power has anobject-side surface 871 being convex in a paraxial region thereof and animage-side surface 872 being concave in a paraxial region thereof. Theseventh lens element 870 is made of plastic material and has theobject-side surface 871 and the image-side surface 872 being bothaspheric. The image-side surface 872 of the seventh lens element 870 hasat least one convex shape in an off-axis region thereof.

The filter 880 is made of glass and located between the seventh lenselement 870 and the image surface 890, and will not affect the focallength of the photographing lens assembly. The image sensor 895 isdisposed on or near the image surface 890 of the photographing lensassembly.

The detailed optical data of the 8th embodiment are shown in Table 15and the aspheric surface data are shown in Table 16 below.

TABLE 15 8th Embodiment f = 3.81 mm, Fno = 1.90, HFOV = 38.9 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Lens 1 −4.164 (ASP) 0.242 Plastic 1.545 56.1−16.93 2 −7.744 (ASP) 0.053 3 Lens 2 1.555 (ASP) 0.506 Plastic 1.54456.0 5.26 4 3.016 (ASP) 0.113 5 Lens 3 2.539 (ASP) 0.464 Plastic 1.54456.0 4.16 6 −19.608 (ASP) 0.012 7 Ape. Stop Plano 0.038 8 Lens 4 4.267(ASP) 0.202 Plastic 1.544 56.0 −8.56 9 2.190 (ASP) 0.391 10 Lens 587.772 (ASP) 0.542 Plastic 1.671 19.3 312.07 11 150.759 (ASP) 0.408 12Lens 6 −21.586 (ASP) 0.400 Plastic 1.671 19.3 −8.60 13 7.927 (ASP) 0.08114 Lens 7 1.907 (ASP) 0.698 Plastic 1.534 55.9 63.05 15 1.764 (ASP)0.276 16 Filter Plano 0.210 Glass 1.517 64.2 — 17 Plano 0.390 18 ImagePlano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 16 Aspheric Coefficients Surface # 1 2 3 4 5 k = −4.9465E+01−4.9775E+01 −7.5008E−01 −1.6080E+00 −1.7771E+00 A4 = −2.5669E−03 1.0416E−02 −7.8402E−02 −1.0444E−01 −4.3752E−02 A6 = −1.2204E−03−4.8617E−04  7.6671E−02 −2.6269E−02  1.1485E−03 A8 =  2.6701E−04−6.6825E−03 −1.1230E−01  8.0274E−02 −2.5717E−02 A10 =  9.9853E−04 7.6522E−03  8.4376E−02 −3.3295E−02  2.3274E−01 A12 = −6.5091E−04−3.7916E−03 −4.3744E−02 −1.2280E−02 −3.0539E−01 A14 =  1.6139E−04 9.0413E−04  1.5422E−02  1.4637E−02  1.6552E−01 A16 = −1.4068E−05−8.1814E−05 −2.4579E−03 −3.4766E−03 −3.4478E−02 Surface # 6 8 9 10 11 k= −8.5562E+01  5.5572E+00 −1.5781E+01  −9.0000E+01  2.0000E+01 A4 = 5.7431E−02 −1.7219E−02 1.1347E−01 −8.3762E−02 −4.7496E−02 A6 =−1.5779E−01 −2.7524E−03 −9.6221E−02   1.0406E−01 −5.7066E−03 A8 = 4.5037E−01  2.5642E−01 1.4870E−01 −4.7164E−01  2.0023E−02 A10 =−8.7150E−01 −5.8690E−01 1.3410E−02  1.1544E+00 −3.3665E−02 A12 = 9.8071E−01  5.7979E−01 −2.3470E−01  −1.8078E+00  2.4103E−02 A14 =−5.9689E−01 −1.9788E−01 2.0553E−01  1.5427E+00 −6.4357E−03 A16 = 1.5227E−01 — — −5.6700E−01 — Surface # 12 13 14 15 k = −1.0000E+00−3.3114E+00 −1.6447E+01 −4.9227E+00 A4 =  3.9093E−02 −2.3376E−01−2.5463E−01 −1.0500E−01 A6 = −6.2700E−01  3.2688E−01  1.6478E−01 4.0321E−02 A8 =  1.5176E+00 −3.3069E−01 −6.5431E−02 −1.1371E−02 A10 =−3.5332E+00  1.9798E−01  1.6752E−02  1.8384E−03 A12 =  4.7565E+00−7.1625E−02 −2.6361E−03 −1.5686E−04 A14 = −3.5748E+00  1.4103E−02 2.2974E−04  4.9853E−06 A16 =  1.1005E+00 −1.1305E−03 −8.4540E−06 —

In the 8th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 8th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 15 and Table 16as the following values and satisfy the following conditions:

8th Embodiment f [mm] 3.81 (R3 + R4)/(R3 − R4) −3.13 Fno 1.90 (R8 +R9)/(R8 − R9) −1.05 HFOV [deg.] 38.9 (R13 + R14)/(R13 − R14) 25.68 V519.3 |f/R11| + |f/R12| 0.66 |V1 − V4| 0.1 f/EPD 1.90 V3 + V5 + V6 94.6f/f1 −0.22 Vmin 19.3 |f7/f1| 3.72 T34/T56 0.12 |f2/f6| 0.61 ATmax/ATmin8.16 (TL)²/(EPD × ImgH) 4.07 TL/T67 62.05 BL/EPD 0.44 TL/EPD 2.51TL/ImgH 1.62 |TL/f6| 0.58 |Dsr5/Dsr6| 39.67

9th Embodiment

FIG. 17 is a schematic view of an image capturing unit according to the9th embodiment of the present disclosure. FIG. 18 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 9thembodiment. In FIG. 17 , the image capturing unit includes thephotographing lens assembly (its reference numeral is omitted) of thepresent disclosure and an image sensor 995. The photographing lensassembly includes, in order from an object side to an image side, anaperture stop 900, a first lens element 910, a second lens element 920,a third lens element 930, a stop 901, a fourth lens element 940, a fifthlens element 950, a sixth lens element 960, a seventh lens element 970,a filter 980 and an image surface 990. The photographing lens assemblyincludes seven single and non-cemented lens elements (910, 920, 930,940, 950, 960 and 970) with no additional lens element disposed betweenthe first lens element 910 and the seventh lens element 970.

The first lens element 910 with positive refractive power has anobject-side surface 911 being convex in a paraxial region thereof and animage-side surface 912 being concave in a paraxial region thereof. Thefirst lens element 910 is made of plastic material and has theobject-side surface 911 and the image-side surface 912 being bothaspheric.

The second lens element 920 with positive refractive power has anobject-side surface 921 being convex in a paraxial region thereof and animage-side surface 922 being concave in a paraxial region thereof. Thesecond lens element 920 is made of plastic material and has theobject-side surface 921 and the image-side surface 922 being bothaspheric.

The third lens element 930 with negative refractive power has anobject-side surface 931 being convex in a paraxial region thereof and animage-side surface 932 being concave in a paraxial region thereof. Thethird lens element 930 is made of plastic material and has theobject-side surface 931 and the image-side surface 932 being bothaspheric. The image-side surface 932 of the third lens element 930 hasat least one inflection point.

The fourth lens element 940 with positive refractive power has anobject-side surface 941 being convex in a paraxial region thereof and animage-side surface 942 being convex in a paraxial region thereof. Thefourth lens element 940 is made of plastic material and has theobject-side surface 941 and the image-side surface 942 being bothaspheric.

The fifth lens element 950 with positive refractive power has anobject-side surface 951 being concave in a paraxial region thereof andan image-side surface 952 being convex in a paraxial region thereof. Thefifth lens element 950 is made of plastic material and has theobject-side surface 951 and the image-side surface 952 being bothaspheric. The image-side surface 952 of the fifth lens element 950 hasat least one inflection point.

The sixth lens element 960 has an object-side surface 961 being planarin a paraxial region thereof and an image-side surface 962 being planarin a paraxial region thereof. The sixth lens element 960 is made ofplastic material and has the object-side surface 961 and the image-sidesurface 962 being both aspheric. Both the object-side surface 961 andthe image-side surface 962 of the sixth lens element 960 have at leastone inflection point.

The seventh lens element 970 with negative refractive power has anobject-side surface 971 being convex in a paraxial region thereof and animage-side surface 972 being concave in a paraxial region thereof. Theseventh lens element 970 is made of plastic material and has theobject-side surface 971 and the image-side surface 972 being bothaspheric. The image-side surface 972 of the seventh lens element 970 hasat least one convex shape in an off-axis region thereof.

The filter 980 is made of glass and located between the seventh lenselement 970 and the image surface 990, and will not affect the focallength of the photographing lens assembly. The image sensor 995 isdisposed on or near the image surface 990 of the photographing lensassembly.

The detailed optical data of the 9th embodiment are shown in Table 17and the aspheric surface data are shown in Table 18 below.

TABLE 17 9th Embodiment f = 3.85 mm, Fno = 1.45, HFOV = 41.6 deg.Surface # Curvature Radius Thickness Material Index Abbe # Focal Length0 Object Plano Infinity 1 Ape. Stop Plano −0.469 2 Lens 1 2.157 (ASP)0.526 Plastic 1.545 56.0 6.74 3 4.780 (ASP) 0.067 4 Lens 2 2.314 (ASP)0.210 Plastic 1.566 37.4 32.25 5 2.563 (ASP) 0.426 6 Lens 3 12.252 (ASP)0.210 Plastic 1.660 20.4 −5.74 7 2.875 (ASP) 0.080 8 Stop Plano −0.040 9Lens 4 3.754 (ASP) 0.648 Plastic 1.544 55.9 4.30 10 −5.810 (ASP) 0.47111 Lens 5 −4.840 (ASP) 0.300 Plastic 1.566 37.4 6.92 12 −2.214 (ASP)0.050 13 Lens 6 ∞ (ASP) 0.605 Plastic 1.660 20.4 Infinity 14 ∞ (ASP)0.592 15 Lens 7 2.897 (ASP) 0.360 Plastic 1.566 37.4 −3.62 16 1.146(ASP) 0.500 17 Filter Plano 0.210 Glass 1.517 64.2 — 18 Plano 0.039 19Image Plano — Note: Reference wavelength is 587.6 nm (d-line). Aneffective radius of the stop 901 (Surface 8) is 1.140 mm.

TABLE 18 Aspheric Coefficients Surface # 2 3 4 5 6 k =  1.9413E−01−9.0000E+01 −1.6843E+01 −1.6404E+01 −6.0311E+01 A4 = −3.7071E−03−9.1371E−02 −1.3177E−01 −2.2219E−02 −2.1114E−01 A6 = −5.6023E−03 2.0326E−01  2.6189E−01 −1.6096E−02  2.0165E−01 A8 =  1.7777E−02−1.8778E−01 −2.0206E−01  1.4216E−01 −2.7180E−01 A10 = −2.2747E−02 1.0029E−01  9.1451E−02 −1.9010E−01  2.4246E−01 A12 =  1.4988E−02−1.5694E−02 −3.3694E−03  1.0193E−01 −1.2437E−01 A14 = −3.2518E−03−4.1048E−03 −1.2596E−02 −1.0914E−02  2.4959E−02 A16 =  1.0572E−04 9.8270E−04  3.4297E−03 −6.5893E−03 − Surface # 7 9 10 11 12 k =−4.5124E+01 −7.6239E+01 −5.1488E+01  7.7515E+00 −1.1097E+00 A4 =−9.3690E−02 −1.7507E−02 −1.0887E−01 −2.1897E−01 −1.0304E−01 A6 = 9.7589E−02  6.0958E−02  7.0602E−02  1.7583E−01  7.6701E−02 A8 =−7.9728E−02 −6.0909E−02 −7.2039E−02 −7.5052E−02 −2.9043E−02 A10 = 3.1541E−02  1.8282E−02  5.5831E−02  2.3325E−02  1.7433E−02 A12 =−3.8298E−03 −1.7251E−05 −2.7971E−02 −2.7167E−03 −5.8105E−03 A14 = — — 6.3570E−03 −1.8017E−04  7.3408E−04 A16 = — — — — −2.6848E−05 Surface #13 14 15 16 k = −9.0000E+01 8.9996E+01 −2.2876E+01 −5.0223E+00 A4 = 1.0481E−01 2.0198E+00 −2.1349E−01 −1.0883E−01 A6 = −1.2379E−01−1.1526E+01   1.0903E−01  5.4189E−02 A8 =  6.7914E−02 2.8434E+01−5.3726E−02 −1.9203E−02 A10 = −2.4324E−02 −4.6700E+01   1.7256E−02 4.1417E−03 A12 =  4.9299E−03 4.7160E+01 −2.9915E−03 −5.0943E−04 A14 =−4.6089E−04 −2.6329E+01   2.6100E−04  3.2768E−05 A16 = — 6.2192E+00−9.0824E−06 −8.5422E−07

In the 9th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 9th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 17 and Table 18as the following values and satisfy the following conditions:

9th Embodiment f [mm] 3.85 (R3 + R4)/(R3 − R4) −19.59 Fno 1.45 (R8 +R9)/(R8 − R9) 10.98 HFOV [deg.] 41.6 (R13 + R14)/(R13 − R14) 2.31 V537.4 |f/R11| + |f/R12| 0.00 |V1 − V4| 0.1 f/EPD 1.45 V3 + V5 + V6 78.2f/f1 0.57 Vmin 20.4 |f7/f1| 0.54 T34/T56 0.80 |f2/f6| 0.00 ATmax/ATmin14.80 (TL)²/(EPD × ImgH) 2.95 TL/T67 8.87 BL/EPD 0.28 TL/EPD 1.98TL/ImgH 1.49 |TL/f6| 0.00 |Dsr5/Dsr6| 0.78

10th Embodiment

FIG. 19 is a perspective view of an image capturing unit according tothe 10th embodiment of the present disclosure. In this embodiment, animage capturing unit 10 is a camera module including a lens unit 11, adriving device 12, an image sensor 13 and an image stabilizer 14. Thelens unit 11 includes the photographing lens assembly disclosed in the1st embodiment, a barrel and a holder member (their reference numeralsare omitted) for holding the photographing lens assembly. The externallight converges into the lens unit 11 of the image capturing unit 10 togenerate an image, and the lens unit 11 along with the driving device 12is utilized for image focusing on the image sensor 13, and the image isable to be digitally transmitted to an electronic component.

The driving device 12 can have auto focusing functionality, anddifferent driving configurations can be through the use of voice coilmotors (VCM), micro electro-mechanical systems (MEMS), piezoelectricsystems, or shape memory alloy materials. The driving device 12 isfavorable for the lens unit 11 to obtain a better imaging position, sothat a clear image of the imaged object can be captured by the lens unit11 with different object distances. The image sensor 13 (for example,CCD or CMOS), which can be featured with high photosensitivity and lownoise, is disposed on the image surface of the photographing lensassembly to provide higher image quality.

The image stabilizer 14, such as an accelerometer, a gyroscope and aHall effect sensor, is configured to work with the driving device 12 toprovide optical image stabilization (01S). The driving device 12 workingwith the image stabilizer 14 is favorable for compensating for pan andtilt of the lens unit 11 to reduce blurring associated with motionduring exposure. In some cases, the compensation can be provided byelectronic image stabilization (EIS) with image processing software,thereby improving the image quality while in motion or low-lightconditions.

11th Embodiment

FIG. 20 is one perspective view of an electronic device according to the11th embodiment of the present disclosure. FIG. 21 is anotherperspective view of the electronic device in FIG. 20 . FIG. 22 is ablock diagram of the electronic device in FIG. 20 . In this embodiment,an electronic device 20 is a smart phone including the image capturingunit 10 disclosed in the 10th embodiment, a flash module 21, a focusassist module 22, an image signal processor 23, a user interface 24 andan image software processor 25. In this embodiment, the electronicdevice 20 includes one image capturing unit 10, but the disclosure isnot limited thereto. In some cases, the electronic device 20 can includemultiple image capturing units 10, or the electronic device 20 caninclude the image capturing unit 10 and other image capturing unit.

When a user captures the images of an object 26 through the userinterface 24, the light rays converge in the image capturing unit 10 togenerate images, and the flash module 21 is activated for lightsupplement. The focus assist module 22 detects the object distance ofthe imaged object 26 to achieve quick focusing. The image signalprocessor 23 is configured to optimize the captured image to improve theimage quality. The light beam emitted from the focus assist module 22can be either infrared or laser. The user interface 24 can be a touchscreen or a physical button. The user is able to interact with the userinterface 24 and the image software processor 25 having multiplefunctions to capture images and complete image processing.

The smart phone in this embodiment is only exemplary for showing theimage capturing unit 10 of the present disclosure installed in anelectronic device, and the present disclosure is not limited thereto.The image capturing unit 10 can be optionally applied to optical systemswith a movable focus. Furthermore, the photographing lens assembly ofthe image capturing unit 10 is featured with good capability inaberration corrections and high image quality, and can be applied to 3D(three-dimensional) image capturing applications, in products such asdigital cameras, mobile devices, digital tablets, multiple cameradevices, wearable devices, smart televisions, network surveillancedevices, image recognition systems, motion sensing input devices,dashboard cameras, vehicle backup cameras and other electronic imagingdevices.

The foregoing description, for the purpose of explanation, has beendescribed with reference to specific embodiments. It is to be noted thatTABLES 1-18 show different data of the different embodiments; however,the data of the different embodiments are obtained from experiments. Theembodiments were chosen and described in order to best explain theprinciples of the disclosure and its practical applications, to therebyenable others skilled in the art to best utilize the disclosure andvarious embodiments with various modifications as are suited to theparticular use contemplated. The embodiments depicted above and theappended drawings are exemplary and are not intended to be exhaustive orto limit the scope of the present disclosure to the precise formsdisclosed. Many modifications and variations are possible in view of theabove teachings.

What is claimed is:
 1. A photographing lens assembly comprising sevenlens elements, the seven lens elements being, in order from an objectside to an image side, a first lens element, a second lens element, athird lens element, a fourth lens element, a fifth lens element, a sixthlens element and a seventh lens element; each of the seven lens elementshaving an object-side surface facing toward the object side and animage-side surface facing toward the image side; wherein the object-sidesurface of the sixth lens element is convex in a paraxial regionthereof, the object-side surface of the seventh lens element is convexin a paraxial region thereof, the image-side surface of the seventh lenselement is concave in a paraxial region thereof and has at least oneconvex shape in an off-axis region thereof, and a central thickness ofthe third lens element is smaller than a central thickness of the fourthlens element; wherein an Abbe number of the third lens element is V3, anAbbe number of the fifth lens element is V5, an Abbe number of the sixthlens element is V6, a minimum value among Abbe numbers of the seven lenselements of the photographing lens assembly is Vmin, and the followingconditions are satisfied:30.0<V3+V5+V6<90.0; andVmin<21.5.
 2. The photographing lens assembly of claim 1, wherein theimage-side surface of the second lens element is concave in a paraxialregion thereof.
 3. The photographing lens assembly of claim 1, whereinthe object-side surface of the first lens element is convex in aparaxial region thereof, the image-side surface of the first lenselement is concave in a paraxial region thereof, the object-side surfaceof the second lens element is convex in a paraxial region thereof, andthe third lens element has negative refractive power.
 4. Thephotographing lens assembly of claim 1, wherein the fourth lens elementhas positive refractive power, the object-side surface of the fifth lenselement is concave in a paraxial region thereof, and the image-sidesurface of the fifth lens element is convex in a paraxial regionthereof.
 5. The photographing lens assembly of claim 1, wherein theminimum value among Abbe numbers of the seven lens elements of thephotographing lens assembly is Vmin, and the following condition issatisfied:Vmin≤19.3.
 6. The photographing lens assembly of claim 1, wherein theAbbe number of the third lens element is V3, the Abbe number of thefifth lens element is V5, the Abbe number of the sixth lens element isV6, and the following condition is satisfied:30.0<V3+V5+V6≤78.2.
 7. The photographing lens assembly of claim 1,wherein an axial distance between the object-side surface of the firstlens element and an image surface is TL, a maximum image height of thephotographing lens assembly is ImgH, and the following condition issatisfied:1.0<TL/ImgH≤1.65.
 8. The photographing lens assembly of claim 1, whereina focal length of the photographing lens assembly is f, an entrancepupil diameter of the photographing lens assembly is EPD, and thefollowing condition is satisfied:0.80<f/EPD≤1.60.
 9. The photographing lens assembly of claim 1, whereinhalf of a maximum field of view of the photographing lens assembly isHFOV, and the following condition is satisfied:38.0 degrees<HFOV<55.0 degrees.
 10. The photographing lens assembly ofclaim 5, wherein each of the seven lens elements is a single andnon-cemented lens element; wherein a focal length of the photographinglens assembly is f, a focal length of the first lens element is f1, andthe following condition is satisfied:−0.50≤f/f1≤0.88.
 11. The photographing lens assembly of claim 5, whereina curvature radius of the image-side surface of the fourth lens elementis R8, a curvature radius of the object-side surface of the fifth lenselement is R9, and the following condition is satisfied:(R8+R9)/(R8−R9)<7.50.
 12. The photographing lens assembly of claim 5,wherein an axial distance between the object-side surface of the firstlens element and an image surface is TL, a focal length of the sixthlens element is f6, and the following condition is satisfied:|TL/f6|<0.65.
 13. The photographing lens assembly of claim 1, wherein anaxial distance between the object-side surface of the first lens elementand an image surface is TL, an entrance pupil diameter of thephotographing lens assembly is EPD, a maximum image height of thephotographing lens assembly is ImgH, and the following condition issatisfied:(TL)²/(EPD×ImgH)<3.80.
 14. An image capturing unit comprising: thephotographing lens assembly of claim 1; and an image sensor disposed onan image surface of the photographing lens assembly.
 15. An electronicdevice comprising: the image capturing unit of claim
 14. 16. Aphotographing lens assembly comprising seven lens elements, the sevenlens elements being, in order from an object side to an image side, afirst lens element, a second lens element, a third lens element, afourth lens element, a fifth lens element, a sixth lens element and aseventh lens element; each of the seven lens elements having anobject-side surface facing toward the object side and an image-sidesurface facing toward the image side; wherein the object-side surface ofthe seventh lens element is convex in a paraxial region thereof, and theimage-side surface of the seventh lens element is concave in a paraxialregion thereof and has at least one convex shape in an off-axis regionthereof; wherein an Abbe number of the third lens element is V3, an Abbenumber of the fifth lens element is V5, an Abbe number of the sixth lenselement is V6, a minimum value among Abbe numbers of the seven lenselements of the photographing lens assembly is Vmin, an axial distancebetween the object-side surface of the first lens element and an imagesurface is TL, an axial distance between the sixth lens element and theseventh lens element is T67, and the following conditions are satisfied:30.0<V3+V5+V6<90.0;Vmin<21.5; and2.0<TL/T67<12.0.
 17. The photographing lens assembly of claim 16,wherein at least one of the object-side surface and the image-sidesurface of the sixth lens element has at least one inflection point, andthe seventh lens element has negative refractive power.
 18. Thephotographing lens assembly of claim 16, wherein the object-side surfaceof the third lens element is convex in a paraxial region thereof, andthe image-side surface of the third lens element is concave in aparaxial region thereof.
 19. The photographing lens assembly of claim16, wherein the axial distance between the object-side surface of thefirst lens element and the image surface is TL, an entrance pupildiameter of the photographing lens assembly is EPD, and the followingcondition is satisfied:TL/EPD<2.80.
 20. The photographing lens assembly of claim 16, wherein afocal length of the photographing lens assembly is f, a focal length ofthe first lens element is f1, a focal length of the seventh lens elementis f7, an entrance pupil diameter of the photographing lens assembly isEPD, and the following conditions are satisfied:0.80<f/EPD<2.0; and|f7/f1|<4.0.
 21. The photographing lens assembly of claim 16, wherein anAbbe number of the first lens element is V1, an Abbe number of thefourth lens element is V4, a maximum value among axial distances betweeneach of adjacent lens elements of the seven lens elements is ATmax, aminimum value among axial distances between each of adjacent lenselements of the seven lens elements is ATmin, and the followingconditions are satisfied:|V1−V4|<25.0; and5.0<ATmax/ATmin<19.0.
 22. The photographing lens assembly of claim 16,wherein an axial distance between the third lens element and the fourthlens element is T34, an axial distance between the fifth lens elementand the sixth lens element is T56, and the following condition issatisfied:0<T34/T56<10.0.
 23. The photographing lens assembly of claim 16, whereinan axial distance between the image-side surface of the seventh lenselement and the image surface is BL, an entrance pupil diameter of thephotographing lens assembly is EPD, and the following condition issatisfied:BL/EPD≤0.35.